Temp gauge goes down when idling

temp gauge goes down when idling I paid for the expensive head gasket repair, new hoses and radiator but the problem persists. 0 when i turn on the heater my temp gauge will go up and down. If the Temperature Gauge Goes Up and Down. It should be hot to the touch. Temperature gauge troubleshooting begins with isolating the problem either to the gauge, sending unit, fuse or wiring. Temp gauge was . Be sure to check your cooling system thoroughly before suspecting the gauge. Is the temperature exceeding 210 normal . This feature reduces engine heat while idling in traffic by shutting down one cylinder. A defective oil pump can also lead to low oil . My 2004 Chrysler 300m 3. When I release the throttle while braking for a stop sign the tach does not drop right away and when I come to the stop they drop to about 1500 and stay there for a second then drop down to 1200 or so. The car idles well when it is started cold, but when the temp gauge starts to move before the thermostat opens, the car will surge. No temp gauge movement outside of normal operating temp thru the entire trip. What does that mean? That coolant must be circulating through the radiator and is getting cooled down by the headwind. When my Mom comes to a stop sign on a hill near our house, the temperature gauge shoots up into H. It's never actually overheated. 5 TDI with the heater blasting away at idle the engine temperature would drop but you won't see any movement on the gauge unless it goes down below about 78. Several factors and elements may make the gauge to malfunction. Make sure all the coolant plugs are secure. hey guys like the title says, my temperature gauge raises at idle and drops when you accelerate to about 2000rpms. The temp gauge needle in the summer will stay around the halfway mark in normal driving. Faulty engine coolant temperature sensor. 7. Turning on the A/C or cranking up the heat may help roll back the needle on your temp gauge, depending on your problem. Posts: 4,897. Once I began moving again the temp was 173-175. 69buick . Temp gauge rising After i put some green coolant in this morning, when i crank up the car the temp gauge goes to about half as im driving it stays steady but when i come to stop light it rises towards the red. Temp is slightly higher sometimes at stop lights, while idling, etc. Pulley's are all 67 numbers correct. After the A/C, may or may not have shut off, it would go back down to being just shy to a bit less than halfway to overheating. Take a . 3l engine has been overheating lately when I let it idle for around 4 minutes or so. She turned heater on full blast and that brought temp gauge down enough to exit highway. If water doesn't move, or suddenly rushes into the radiator, then you probably have a problem with the thermostat or water pump, or an . Once the fans kicked into high the temp gauge would drop to close to center. Its wire might have become loose, due to which you must be getting false indications. I've also seen the engine temp gauge get up close to the red then cool back down then other times stay high. But when idling the gauge goes to the red area and comes back to the middle position when the fans kicks in. Mine got up to that riding home from a service when I got stuck in horrible traffic. During this time, the number of revolutions per minute (RPM) inside the engine will change. Normal? Oh I was experimenting with the track mode to see the ride difference, could that have made it go up? No agressive driving at all, I just wanted to test it. White Smoke For a while I noticed my battery gauge on the dash dipping down under 14 once in a while, noticeably when driven later in the day. If it doesn’t, there’a a problem in the fan circuit. My electric fans don't work in front of the radiator so it's just my clutch fan keeping the car cool and I've never had it go above 100, even in the summer. When I first got the lexus the temp gauge would only rise to the first mark for the first year that I had the car. I have a 2008 Expedition Limited and just in the last few days the a/c will blow hot after idling for 5-10 minutes in the Texas heat. Temp gauge goes down when stepping on gas. Ok at first I was 100% sure that my thermostat was stuck to wide open because it seamed that if I was stopped at a light my temp would eventually go up to normal and if I was driving it would drop down to half way between normal and cold (this was happening for the past 2 days and it has been. then take a small pair of pliers and squeeze the terminal shut just a tiny bit. Let's go over each of these causes in more detail and learn how they can be remedied. want to learn how to fix nhtsa . 0L engine idle intermittently goes up and down while driving or at idle! Thread starter 69buick; Start date Aug 25, 2013; 6. These are the most common issues you can encounter. As with any electrical troubleshooting it is best to check all wiring connections are clean, tight and free of corrosion. Yes we did get the air bubbles out of the system, by leaving the cap off letting it run and waitin for the level to go back down. Runs fine til i'm idling somewhere (like a drivethru) then the temp gauge goes 3/4 to the top, then I start driving and it goes back down to normal I have a new head gasket, just flushed coolant, and the water pump isnt that old either. So, the past two months every time I idle for too long my temperature goes up and my car almost overheats until I'm able to drive again and then it slowly goes back down. Jaafar What Things Cause a Car's Temperature Gauge to Increase? Heat that is coming from inside the car as well as outside of the car can cause the temperature gauge of the car to increase. the truck never gets hot. As soon as I pick the RPMs up (immediately) it reads normally. If I turn the fan off, the gauge goes back to the middle. I drive it all the time in nice weather. This seemed like it happened after i changed my head gasket, my temperature gauge fluctuates all day long whether im goin up, down, flat, any kind of ground. . By the way I recalled that the frequency of the signal light, rise of the temperature gauge was also accompanied with revs going higher (idling on P) - from around 1. It doesn't matter on the external temperature either, it was 23 degrees F outside the first . On my way to work today, I noticed that the temperature gauge was dropping way down when I was in traffic. Don't want to start throwing parts, randomly at the car. A coolant temperature sensor costs $30 to $100, and the labor costs $20 to $150. The O2 sensor works like a miniature generator and produces its own voltage when it gets hot. 0. Water pump (had a very small leak) Thermostat. Yes the radiator has water in it. My temp gauge read fine when idling but when i step on the gas at a stop and reach about 2500-3000 rpms, my temp gauges drops all the way down, and when im driving on the free way in . Ford Ranger Driver. Bypass Temperature Sensor - Connect a jumper wire between the 2 pins of temperature sensor harness connector. This is the simplest issue to fix, and the least dangerous one for your car’s health too. It quickly rose to 289 and then never showed a temp above that. I'm having the same problem with my 2007 chevrolet silverado. 3,565 Posts. 3rd line is 150 celsius converted to 302 farenheight. Dashboard warning light or abnormal temperature gauge – The first sign of low coolant should be a dashboard warning light, or a rising temperature gauge. it doesnt matter if you are moving or not. I have chevy Malibu 2018, when driving in high speeds (130km+) the coolant temperature is 107°C then goes down. Not having the heater on does not solve the problem. 3L with 363k miles. The gauges pictured here lists the temperature of R12, R22, and R502. Corrosion in plug connectors. MPH, Temp Outside 45 degrees, Night time conditions, returned to the house, engine hot ac off still on and temp GAUGE on zero, popped the hood without shutting down and the engine is not over heated, Hoses return and to the radiator are warm but not too hot to touch and hold. Low oil pressure at idle only, will most often mean that the engine is low on oil. Yet when I stop and let my car idle for about 2 minutes, the coolant temperature needle drops about 2mm down. Thereby causing the pressure to read as "normal". for the 3800 this should be normal operational temperature, the gauge should read the half way point which should be bout 200 degrees, at idle with the car sitting the cooling fans do not kick on until coolant temperature reaches roughly 220 degrees, most engine operational temperature is about 190-220 degrees, or the temp gauge will go up and down between 190 and 220 as the fans kick on and . my top radiator hose is nice and hot wich . Discussion Starter · #1 · Mar 10, 2012. The same thing was happening with the needle going up and down on the temp gauge. When I first noticed this. 2002 Chevy Silverado 5. In order of probability: 1) Low coolant. FredB If the thermostat is sticking, it may not be opening up at the proper temperature, causing the temperature to rise. So in total, you can expect to pay between $135 and $220 for a throttle position sensor replacement. Filled and purged the system and still had the temp gauge go between the first and second line to the right while it sat idling. When I start the truck, the needles all sweep to the left and go back. It also causes the ac to not work in this condition. Fluids all good. My wife was idling in bumper-bumper traffic on highway when temp gauge suddenly started climbing, reached the end and turned red. The temp gauge goes to overheat. As more power is applied to the engine via acceleration, the pressure builds up inside the engine. reading on the gauge so I do not know the exact temperature it is going to when going slow. Add the coolant and place the cap back on the reservoir. I was zipping down the road and had just decided to turn around, I started slowing down and then noticed my engine light flashing and my machine was in "limp home mode" and temp gauge was all the way up. 5 Symptoms of a Bad Idle Air Control Valve (and Replacement Cost) When the engine is running but the vehicle is not moving, this means the engine is idling. 5 litre. As I brought it up on plane, the constant steady alarm began to ring. 8L 130,000kms Temp gauge goes from 85 to over 90 when either idling or in slow traffice. Faulty Temperature Gauge. I need help can you guys tell me where the temperature gauge sender/sending unit/temperature gauge switch is located on a 01 mercury cougar v6 s model 2. After idling more than 30 minutes, it did not. Typically the temp gauge reads at about just under halfway and it never moves up or down regardless of whether I'm on the highway or in town. | Image courtesy Harry Heng, via Flickr (Creative Commons 2. The coolant temperature sensor itself is often quite cheap and you can often find them around $40 for a quality one. Then it came down. Fan kicks in when idling just a little above this. With A/C on and an outside AMB of 78 degrees F and a cold engine idling. I stopped at the market and upon shut off it dieseled for a few seconds. I wonder if the 107 is normal for the car. It seems like the fans were waiting too long to kick on. If the engine starts to overheat but you don't see water flow, then have an assistant rev the engine up for a moment. Look into the radiator and watch for water circulating through from the engine. If at idle and the gauge reads hot but the IR shows that temp range the sending unit is not working correctly. Intermittent problem - temperature gauge will show car is overheating withing minutes of turning car on. So, bought new truck last night (4. Activate Electronic Idle Temperature Management System [EITMS] while in traffic. i am trying to break it in right ,but the temp i was concerned about. #1. after i go through the light the gauge goes back down. On a long pull, the needle will go up about another tick mark above the middle - never higher while driving. it never stops, and it goes back and forth constantly. Get the IR and check it at idle when hot and in the middle when driving. I have replaced the. 2017 (Euro4) bikes have a built in temp gauge. If it's stop & go or I park it and then restart the car the needle will go slightly above halfway. Once in free flowing traffic temp goes down again. My coolant temp gauge just went up to the 3/4 mark as I was idle at a drive thru. At this point, when the car is cold, remove the radiator cap and note the coolant level. Jun 2, 2003. The temperature gauge on your car is a fairly basic tool though it is an extremely important one and it can be very frustrating when your temperature gauge is not working. Help appreciated. If it stays on a low reading, then you know your oil pressure gauge is broken. When I go roughly 25MPH or faster the needle on the temperature gauge comes down to stone cold. Pulled over and let it idle for about 5 minutes. So i was driving back up to my college, its 50 miles total at about 40 miles i turned my heat off because i had it on whole way and it was hot as shit, and i noticed my temp gauge go up a little over middle, not 3/4 of way but close, then it went back down. If the needle goes to about the middle of the gauge, that means the engine has reached normal operating temperature, usually between 180 an 210°F. Jan 14, 2006. The ideal engine temperature should be somewhere between 195 and 220 degrees. ). Driving home today in heavy traffic. The coolant temp will now get to 90 degrees but it sems to take a while and if i stop for traffic lights or traffic the gauge starts to drop towards 70 degrees again. 5 L Engine (VIN H - RPO LX5) Condition Some customers may comment that their vehicle displays a higher than normal temperature gauge reading or may overheat in cold . Poppet was hanging down and the system could not pressurize. Your Journey will be equipped with a temperature warning light and/or a temperature gauge. I have had my diagnostic tool connected while monitoring the ECT in real time and my temp reads 180-195. com Irregular temperature readings: If you notice temperature fluctuations in your temperature gauge, or it stays lower or higher than expected when the engine is running, it could be an indicator of a failing or lousy coolant temp sensor. I have also noticed if I rev the engine while idling up to 2000 RPM, then the temperature actually goes back down to normal and the AC again kicks back on . over 300,000 no issues until recently. Temp gauge stayed at 1/4 at idle. However, it begins to fall back down once I start to drive. Replaced air filter. Gauge/Temp Light. Tonight i got the temp upto 90 degrees and then left the car idling for approx 5 minutes and the temperature dropped down to 70 degrees. When the coolant is heated, it expands; when it cools, it contracts. I have fixed this, but my tachometer is reading all over the place. Drive the vehicle and when the temp gauge falls to 'cold' stop and feel it again. The following process must be preformed with the ignition key turned to the “on” position. I noticed yesterday with my van (2004 85 150k miles, owned for 3 weeks. It goes up quicker when driving then when idling. I replaced components as temperature on gauge was near bottom when driving and only rose to 90c when idling at which time fan kicked in and temp was stable, as soon as I drove any distance temp gauge dropped back to cold. My other cars are all close to straight up and down. The most common symptom of overheating is the temperature light coming on. Turn ignition off. It seems like it is not heating up to the proper temp but the car runs great and is getting 27 mpg around town. The signal from the coolant temperature . 2005 Pontiac Vibe wagon. Car seemed as if it wanted to cut out. It the gauge is jumping up and down, you have an air leak at the oil pickup, or not enough oil. also the coolant level is at the top and has never moved for like almost a year. If your car thermostat goes up and down, then chances are that there is a connection problem between the temperature sensor and the temperature display positioned inside your car. The temp gauge goes to 204 before the fan kicks on, and might go to 208 then shuts off at 194. Truck: '90 V3500 My temp gauge jumps around between dead cold and normal temp when the truck is stopped and idling. Sometimes when it does it, my truck sputt. It doesn't sound like the water pump has failed, and I've never seen a car show hot while moving and not as much while at idle. Idle the vehicle for about 20 minutes and then feel the upper radiator hose. Driving while overheating can cause long term engine damage. Did this with the AC off to check the fans for about 45 minutes. I have a 2008 chevy impala and it is reading engine idle and reducing speed and it is leaking coolant. At the peak of 211F, the needle on the truck did not move, or move up very little. I am puzzled. Within about 3 to 4 miles the temperature gauge is already between half and 3/4 sometimes even closer to the red. Your check engine light is on: If the engine’s computer detects a problem with the coolant temperature sensor, or its circuit, it will turn on the check engine light. Ac works fine until engine is allowed to get up to that temp. Up until this time the truck would always sit at 210 degree any time of the year. Cars that don’t have a gauge at all will do the same thing, illuminating a light on your dash that indicates your engine is now in the danger zone. 2001 Holden Astra Manual 1. After about 3min it retured to normal. The important thing is that you are familiar with what reads as “normal” for your car. As soon a I am back at normal driving speeds the temp gauge goes back to the middle and the AC blows cold again. The rpms shot up to about 1,500 rpms and finally settled at about 1,000 rpms in park. I had one go bad on my 92 Caravan and it drove the temp. I've just ran another "search" here to no avail, so I thought I'd make a post. Broken wirings. If the A/C is OFF (or ECON) then the fans are controlled by the coolant temp sensor and PCM. 1st line is 50 degrees celsius which is 122 farenheight. I think the reason for intermittent heat is that the coolant level is (very) low so that the engine has to be turning faster than idle to get the coolant to circulate at all. There are several reasons to why your car can’t keep the ideal working temperature. If I sit at idle for a minute it goes right to normal. Got back on the highway and it went down to about the 1/2 way mark. Not sure what to think of this one. There may be several reasons for this: Low coolant level delaying thermostat opening and closing (check coolant level in the radiator). My ac heat & ac works fine. A P0119 code comes up which is ECT sensor was told this truck doesn't have an ECT it's got the CHT. Overheating as in the temp gauge will go all the way to the top of the line if I am idling. Let the engine idle with all of the accessories in the off position (such as A/C). Temp goes back to 180 for a few seconds. Fan, Installed an auxiliary fan. It needs a battery and an alternator. The following week, the temperature gauge started to read hot after 10min. Doesn't do it until it gets up to normal operating temp. 97camry. Broken engine control unit. Wait for the temperature gauge to return to a normal reading before moving forward. le said: I've noticed this for a few months: Whenever I'm idling my car for a while, say at a long light, or a drive thru, etc, the temperature gauge starts to rise, steadily, making it into the "red zone" once. Apr 11, 2004. No coolant leak but about a week ago, I had a small coolant leak which I couldn't determine where it was coming . Here is what has been done in the past two weeks. Don’t worry if the needle does not exactly sit in the middle of the gauge. If temperature gauge indicates hot, replace coolant temperature sensor. The engine is happy and . gage to the max. and the gauge should stay at 12:00 or a needle's width higher. My 2006 Silverado with 5. In normal speeds it is around 97°C. Arm on gauge is all the way up past the red overheat mark!!! The fans are working, the water in overflow tank is not boiling. issue where my temp gauge will not move at all. Just my $0. All new Harley motorcycles have an Electronic Idle Temperature Management System [EITMS]. Monitor the engines temperature by observing the temperature gauge. Once I get on the highway and pick up speed, the temp drops back down to "half" on the gauge and seems normal. I would guess its the actual temp gauge in the cluster if you have changed all sensors. Since replacing the TPS is fairly easy in most cases (depending on its location), you . 5 TDI will be producing a lot more waste heat than the 1. In this case fans go to SLOW at 224 and FAST at 236. One steady alarm - Beeeeeeeeeeeeeeeep! Check my temp gauge and it is just up over 3/4 (usually it stays in the center). This has happened 3 times in the last 2 months. It is the first one to go upwards in such circumstances. But if you constantly add fluid, you have a big problem, 2) Broken T-Stat blocking coolant flow, 3) Broken fan, 4) Broken water pump and 5) Fouled internal surface of radiator. The smaller scales near the middle of the gauge list the temperature relationship of different refrigerants. I am not sure when exactly the change in frequency of signal light happens, so a short measuring in a shop might not go into this situation. Discussion Starter · #1 · May 21, 2020. my heater valve is leaking a little and i belive its pulling in air with the heater on. I'm driving down the road in my 98 xj, 4. When I rev the engine, the temperature gauge moves slowly back to the 200° range, but when left to idle, it moves back up to 250°. Did a little test. If temperature gauge indicates cold, go to next step. I've got an 04 5. 0) my 1999 saturn sc2 coolant temperature gauge rises when im idling but when i turn on the a/c it goes back down. I ended up using this one from Advance WT386. If things get out of hand, then even a digital gauge will sound an alarm, either by blinking or chiming to get your attention that the engine temperature is rising too high. So far I already changed (all new): Radiator. When your car shows signs of overheating, make sure to check the temperature gauge. I know there has been threads about broken temp gauge but i can't seem to find the right one that matches my problem. Anything over 190F or 90C indicates overheating is occurring. At first I thought it was the fan clutch which I recently installed 2 days ago. I honestly think 143°C or 289°F is the highest the gauge goes up. If your HG is leaking on the intake side and not the exhaust side, it will actually draw coolant into the combustion chamber and burn it. We took it to local Jeep dealer and they said crack in radiator and stuck thermostat which they replaced under warranty (7395 . If this light does come on, make sure that you get off the road quickly and safely. Within two minutes the temp topped out again at 211F, then settled about 195F. 2010 Cadillac DTS Premium Collection. I would remove the T-Stat and run the engine . Car seem to be idling too low. At 190-200 it should be about center. It doesn't move past that point, I was concerned that it would eventually move to the red line and overheat. The radiator looks newer. Smoke is light - no heavy smoke which. ) that if you sit idle with the heater on (as you need in this weather) that the temperature gauge drops from the middle down to quarter, and it drops by a quarter in about 5 minutes. Hi, I just bought a 2006 CR-V with 150,000 miles. If I rev the engine the tacho reading falls and then climbs again. If you have a cracked HG and you are getting exhaust gasses into the cooling system, you will see bubbles. 3. When a temperature gauge goes bad, it is not mandatory that the gauge is faulty. Drove out to Vegas from LA in 106 deg temp without any problems. Lower your car. ( very harsh ride) January 27, 2012. same applies to driving under load. Better than a visual check of hoses would be a radiator pressure check. has the same type of radiator cap as my 94 but if it has, check the vacuum poppet. (It’s a 2. When idling for an extended period of time or right after a long highway drive my temp gauge will go up to around 95 or so but on the highway it hovers right around 87 or a little below. Joined Mar 10, 2012. Don't have a overflow tank. This is because in "AUTO" mode the car cycles the A/C and keeps the cooling fans running and the tiny little motor simply can't keep up with the cold air flowing everywhere. If you have a temperature gauge, make sure temp stays in the safe range while you drive. Temp was great at idle with no alarms, idled out for about 35 minutes. Here is my findings after idling the car for 53 minutes. Join Date: Mar 2010. If your temp gauge is not staying stable, it keeps going up and down and you have PO300 code, you will have to troubleshoot the problem until you find a solu. These are the absolute most common reasons why your car temperature gauge stays on cold. His temp gauge is showing the engine overheating while idling but good while driving. Ignition is not electronic (points). So my temperature gauge started fluctuating from low to mid-gauge reading and it does not matter if at idle or driving. New thermostat, proper coolant, new radiator cap, The numbers around the outside of this gauge indicate pressure in pounds per square inch (PSIG), and the numbers near the bottom indicate vacuum in inches of mercury. I recently purchased a 2005 Chevy Equinox. Then back up. Odometer 77,000. If temperature gauge does . The thing that has me worried now is that I was idleing last night and I heard a "DING DING DING" and my temp was about to hit red! I revved it up to 4K and hit shot down to 200. 0 auto tranny, and the temp gauge bottoms out. Ever since I changed my coolant on my 2001 Honda Prelude 2 months ago, the coolant heats up fine and temperature stabilizes at a bit below mid-point on the stock temperature gauge. The temp needle will be nearly 3/4 of the way up the scale if I stop at the top of the hill, shut the engine down, and shortly thereafter restart the car. Once I’m on the road again the temp gauge goes back to normal and the A/C, which apparently turns off by itself when the engine temp rises?🤷‍♂️, it kicks back on. Bad thermostat. Hi all its been awhile. Faulty Temperature Gauge or Alarm: But don’t count on it. The factory gauge will read "normal" anywhere from 140* to 210* according to the mechanical. Image Credit: amazon. The labor costs will be anywhere between $60 and $90, depending on the hourly rate of the mechanics. It never goes above mid-range or reads hot. Both still . Do not attempt to diagnose or fix the problem until your car has cooled down. First try turning on the heater to see if the temp gage needle remains stable. N. Air pockets in the cooling system; A coolant . Everything is back together and clear. Faulty gauge or instrument cluster. Higher Than Normal Temperature Gauge Reading or Overheat Condition in Cold Weather (Install Enhanced Thermostat) Models: 2001 Oldsmobile Aurora 1999-2000 Oldsmobile Intrigue with 3. If it goes past half the 2nd and 3rd line then something is wrong. If leaking from a loose connection. White Smoke It happened again on the way home from work, and noticed my engine temperature gauge not necessarily getting hot, but still past halfway to overheating on the gauge. In the spring or fall, with any A/C mode not set, it is common for the gauge to go Originally Posted by Transam90Where should the temperature gauge be when the car is at operating temp? Mine only goes half way between zero and straight up and down. But when I got off the freeway then drove about 5 miles off freeway, I came to a stop sign, then my engine light came on, and smoke was coming out under the hood, and big clouds of white smoke form tail pipe. Took a very long time to drop from 289 down to anything else as well. Let your vehicle cool down for at least 30-60 minutes. Now, it was cold yesterday, and even though my temp gauge was reading 225, I wasn't getting ANY heat. When the needle points at the beginning of the scale (base line) on the dash, the temp is at 130 degrees. If it does not you should replace the thermostat located under a rounded flange by removing two bolts, lifting out the thermo and inserting the new one in same orientation as the original. I floored it, the temp went to 200, and I got heat. If the thermostat was indeed stuck shut then your engine will not be cooling down at any time - except when the cooling fans were running. Serviced in Feb 09 - due again Fe … One very cold morning (zero degrees F)after sitting in the drive way all night, the coolant temp gauge started fluxuating while I was driving. Temperature is still shooting up. Went for a drive and temp gauge went to 3/4 and stayed there, going slightly up when stopped and down to 3/4 when cruising. As soon as I get to the highway and get going about 70 mph the temperature gauge goes back down to where it should be. Step 3. You may notice that your temperature gauge reading goes up and down, fluctuates in some kind of pattern, or is erratic. Ease back the throttle and the alarm stops, and temp comes back down to the center. Solution Thermostat and Temp Sensor replaced. Needle doesn't start rising until 125 degrees. When driving, the temperature is fine but when sitting in a drive thru or parked idling the truck will overheat. Arrived to Vegas and while we checked in at the hotel we left the truck idling for 10 minutes (with the AC on). #8 · Mar 23, 2016. Upper hose (the lower hose is not bent so as to not to let the water flow ) When your engine is idle or when you’ve just started your car, the oil pressure gauge will have a low reading. Since your gauge doesn't show actual temperature there is no way to know where you were on the up/down coolant temp cycle while the car was idling but it certainly looks like normal operation to me. It goes from bout 175-180 to 200-210, and you can tell a huge power difference when. I noticed the temp gauge was in the middle when it was idling. 4th line is 200 celsius converted to 393 farenheight. Why 04 silverado temp gauge goes to hot when idling. When the car is on a stop and idling, the temp gauge needle goes up steadily, and when the car is running, the gauge goes back to normal just as fast. Air in the cooling system. WTF is going on? Thanks for the feedback and the gauge on the car isnt going up its staying in the middle its just the accessport is showing the temp go to 205-207 at idle and not go back down until I start driving again. If I drive it?s ok, and it goes down to where it normally is. Overheating when idling for a few minutes. this is a common problem and . Many different problems could result in a rough idle for your car or truck, including: dirty fuel injectors, clogged air filters, bad spark plugs, and a variety of exhaust system issues. I'm not sure if a 4th. Late December I took the car in for warranty service regarding this issue. If I turn the key but not start the truck the gauge goes up to probably 180 now that it is cooler and will sit there just fine. 90s Silverados and Sierras may suffer from idling problems including a higher-than-normal engine idle. Oct 30, 2012 · 1989 Isuzu troop temp gauge goes straight to hot when key turned there is a sending unit for the guage. My car is now overheating. Intermittent overheating problems can also be caused by low coolant, air in the cooling system, a bad coolant temperature sensor, or even a faulty gauge. Temp Gauge and High Idle. WisconsinUS. Temp was about 175F. New water pump, new radiator, new head gasket…. The parts will cost you between $75 and $130 on average. The AC stops blowing cold as well. The technology has changed little from even the oldest models of cars and essentially its job is to do exactly what it says, it tracks the temperature of your engine. New cap cured it. ·. On start-up it goes straight to 4-5000 rpm. I shut the car off as soon as the temp gauge got up. Temperature at a quarter after being parked on the drive for 12 hrs at least. Unless there is a problem with the cooling system (air leak, bad t-stat) the coolant that is expelled from the radiator and into the burp tank will always return to the radiator when the engine . Also during accleration it will rise to 210^ and drop back down, never staying at a constant temp. About the time the flashing airbag light goes off, the gauge goes back down to 160. Anyone seen this before? My speculative problem list: 1- electrical/loose connection - odd because its so. I let the machine sit on the side of the road at idle, and quickly cleared any snow and ice from in front of the radiator. I use it when it's 20 degrees and I use it when it's 95 degrees. On vehicles that use an electric cooling system, ensure the cooling fan is coming on at when the engine reaches operating temperature, usually between 195F – 220F. For the past few winters when the temperature gets down fairly cold, the truck idles high, even after the truck warms up. I got an 88 celica convertible from my neighbor. From that moment, it goes up and down but mainly hot. 0L automatic CVT engine if that helps) Now when I’m driving on the highway its more likely to happen and . it will go up while driving then all of the sudden drop back. If you were sitting in your 2. I found that all sending units listed for 60s mustangs are not accurate. Start the engine. Out of the blue today I hear a bell and start scanning the instruments - temp gauge is very close to pegged! Immediate pull over and pop the hood! Fluid levels are OK and I can hold the radiator hose in my hand for as long as I want to. 25 when the car is stopped and idling. The temperature gauge on my 83 only gets to the first line after the car has warmed up and then the fans kick on and it cools the car back down to the Pelican Parts Forums Coolant temp and idle ? Start up it'll idle high (normal i assume, when things are as they should adjustment wise it goes up to 2krpm) cold. When the engine starts running and heating up or when you're already cruising on the freeway, your gauge's reading should increase. 8 V8). My car does the exact same thing. Assuming (1), (3) and (5) can be checked out, you are left with (2) and (4). This is a fixer upper. When i sit at a light or stop sign it idles and the temperature gauge rise but when i move it goes back to normal. The 2001 SL2 temp gauge goes just a bit past the 1/4 mark even on city driving or with AC and never moves past the mark. gauge fluctuates constantly between normal and 210^ in cool weather (40^ & below). Anyway, I found that the sender wire for the temp gauge had touched the water pump and gone to the core (which is + and therefore live). 1. Celica :: 1988 - After Idling For 10 Minutes Temperature Gauge Was Red - Is It Thermostat? May 6, 2014. When the gauge sign crosses the optimal mark, you should take note. Does the resistor problem affect 2004 models, have fitted new w/pump, temperature sensor and thermostat, and still both the fuel gauge and the temp gauge lie , showing 3/4 full, when it’s actually 1/4. 2nd line is 100 celsius converts to 212 farenheight. Checked overflow and radiator. The only modifications are done to the suspension. The car sometimes also idles at 1500RPM when on park but as soon as you turn it off and back on it will idle at like 800RPM and stays there steadily( I am not sure if these things are related) I have a 1993 Honda Civic Si bone stock. For example, it was 20 degrees when I first started the truck this morning to go to work. 2 K to 1. Re: Temp gauge rises, then goes back down to C while driving Post by bronco_lou » Tue Nov 17, 2009 9:12 pm Sounds to me like the sending unit is bad or maybe a ground issue, tyr to replace the sending unit first and see if that cures the problem. Sitting at idle it has gotten over half way from the center line and the overheat range. Right now when I drive the car it warms up really fast going to the first mark and when I start driving it in residential areas making stops the mark goes towards the middle but doesnt quit reach it there and then goes down when I start driving again. But i jumped it and after idling for 10 minutes, the temperature Gauge was almost in the red. This could be a bad fan motor, bad fan relay, bad coolant temp sensor for the fan, or a blown fuse for the fan circuit. Recently I have noticed my temp gauge rise when I am stopped or idling and also when I run the AC. The EITMS has sensors that monitor temperature levels in the engine. Temp gauge goes well beyond 210. WTF is going on? Replaced thermostat. So I drive the car around checking everything. When the temp gauge is on hot and I rev the engine, temp gauge needle goes down a little bit. It will cool down to about 188-190 then goes right back up in what seems like no time. This is varified with both gauge and a heat gun. 13 Posts. But when I drive the car down the road it begins to run very warm( check gauges and the check engine light came on) so I stop at the side of the road. Then it would go down. gen. The hoses are a bit soft (I can replace). 2001 Honda Accord. Reasons Why Your Car’s Temperature Gauge Goes Up and Down. In case you do not have any experience with handling the technical issue, it is always advised to take your car to a repairer and deal with car running hot but not overheating issue. The 2. It is normal to fluctuate between 10–20 psi at idle (depending on engine), and up to 40 to 60 psi as the rpm increases since the engine turns the oil pump, and pressure is built up by what does not get through the bearings. I then realize the car was actually cooling off. I can leave the engine running for 10 hrs with the AC on and the temperature will be at 40% , then take it to the highway for about 1 hr running at 120km/h once i reduce the speed to 20 km/hr , the temperature goes up to High if i push the accelerator up to 3000rmp on neutral the temperature goes down to 40% and i have to keep doing it every . 5 K (and was audible). When the temp rises while engine is under load, the temp drops when RPM drops and the load is gone (over the hill, etc. Your Explorer will be equipped with a temperature warning light and/or a temperature gauge. Then the fan will kick on and the temp will go down. If I have the HVAC controls set to "AUTO" mode I can actually watch the temp gauge go down, whether at idle or while in motion. 2. Aiming an infrared thermometer at the hoses and cylinder head can determine if you truly have an overheating problem. I thought the issue was the car was low on coolant, but after a couple of times of the car repeating the same issue after i refill it with coolant I assume, that's not the case. Best Regards. there power to be crappy on the hiway like if i was crusing down the highway in 5th . Wait to see if the temperature gauge reads correctly. At that time, the car would leak coolant and at one point was low enough to illuminate the coolant level warning on the dash. I have everything else normal and the car has no other problem, the check engine light is off. Get back in and look at gauge - at the normal (mid-scale) point. The average coolant temperature sensor replacement cost is between $50 and $250, depending on the car model and labor costs. It is AWD with the 3400 in it. During after-start idle, the idle will jump up to about 70% if the engine is cold, stay there about 4 seconds and then ramp down to the target idle speed for the current engine temperature. An engine is operating normally when the needle points at the center or near the center of the gauge. When temperatures are extremely high within the inside of the car, the temperature gauge will greatly increase and the car could suffer from many different problems. When I slow down to 5-10MPH the needle comes back up to about half way on the gauge. There is no CEL showing. 5. We replaced the thermostat yesterday and added coolant to both the radiator and overflow. Since that is when I noted the temperature gauge moving up an down. 56 Posts. If she turns the heater on the gauge drops back down to about halfway. 5L is overheating. In the morning it's fine and either at or little above 14 when driving to work. with the heater off its fine. Why Does the Car Temperature Gauge Go Up – Know Here. … read more You have to make sure the thermostat is working properly and is the correct one. Start the engine and let idle while at the same time watching the temp gauge. It goes up quickly after starting, then stabilizes. 7 Causes of Car Temperature Gauge Stays on Cold. Just today, I noticed the temp gauge in the dash will peg at the "3" mark all the way at the top when the car is moving, but will come down to about 2. Temp will drop back to about 195 once going down the road. It constantly moves between normal and 210^, exempt during summer time it stays steady. my truck has a new radiator,OEM thermostat,fan clutch, engine coolant temp sensor,water pump and radiator cap. If temperature gauge does not indicate cold, go to step 3). Most likely you have a stuck thermostat. By time we drive to dealership, gauge shows only slightly over half-way mark. Chevy Equinox Gauge Shows Overheating. Hey all, So something strange that’s been happening to my 2015 Jeep Patriot is anytime I’m driving, my temperature gauge goes up past the half way mark but NEVER fully to “H”. As the temp gauge rises, check to see if the radiator fan engages. The needle comes down to normal pretty quickly once i get back on the road. Someone mentioned. The temp gauge hold fine when driving but when driven for a bit the temp will start to go up when idling and return down when driving again. Car runs up to 220 degrees at idle (with 60 degree outside temps) and will keep climbing. But I didn't see that, I just *think* I saw it falling as I reached the top. One very cold morning (zero degrees F)after sitting in the drive way all night, the coolant temp gauge started fluxuating while I was driving. When you're moving faster, air will naturally flow over the radiator as you drive, helping lower the temperature the coolant inside. Sep 1, 2018. The temp. Unfortunately, the problem is still there. Re: Temp gauge up and down. 4 that's running along great and all of a sudden at times the temp gauge goes from normal all the way to hot. I think at least once when I was going up a fairly steep hill (on the highway) it also went to normal. The temp guage will go up and drop back at random times. i have an 98 ranger with a 4. I then would go home and start the truck after it sits for 8 1/2 hours and start driving it would be under 14. Your engine stalls: When the engine is first started, it will require more fuel in order to idle smoothly until it’s warmed up. If it is much cooler to the touch than before the thermostat is defective or wrong. 9 TDI. It's temp gauge has always read at just before the 210 mark since new but the other day while at a drive thru it started climbing higher and the temperature here has been high 80s to mid 90s only. #4 · Nov 22, 2004. From idle, once IO start moving, the temp goes down. If your engine is overheated, everything under the hood will be extremely hot. I do not have a temp. On this day it warmed up to 210 then would go to 230, then go back down to 190, then back up to 210. After I start driving again, the temp needle goes back . Changing to a lower temp thermostat will not do any good since the temp is controlled by the fan. Hi all,I have a 2007 EXL and when stuck in traffic on a hot day my temp gauge goes abbout halfway past normal twards the red. There is always heat in the cabin and if you rev the engine to 2000 rpm or so, the heat gauge will moved back down. When I get moving again it goes back down to half. #5. She drove the car today and stopped at the same Stop sign. The idle air control valve is responsible for managing the engine idle speed. Doesnt quite hit 235, but it was still concerning. When I looked at the temp gauge it was showing 3/4 way up. Ran the truck as normal for a few miles. Matter of fact the dash gauge will already show 210 when the engine has only warmed to 160F from a cold start. If the temperature gauge only moves toward the red while you're idling, but begins to creep back down once you're moving a little faster, the most likely culprit is a broken or otherwise damaged radiator fan. Now most days the temp gauge stays at 90°C but there are these "weird" days when the temp gauge suddenly "decides" to start jumping up and down until I hit the instrument cluster with my hand and . High oil temperature can cause low oil pressure. Open the rad cap when cold and crank the engine on. 06 mazda 3 2. October 2012. When taking it for a drive, the extra compression in the system may be enough to make the thermostat open up, which would explain why the temperature seems to go down when you take it for a drive. . It'll come back down to 1krpm or so, and as soon as it starts to warm up on the temp gauge the idle will drift down to 900, 800, 700, then it'll act like it's about to die, then it'll idle way up to 1500 or so, drift back down to . The temp gauge is back to fluctuating and causing funky idle (when the temp gauge drops to zero the idle shoots up). So, take your car to a mechanic and make sure that the wires are safe and intact. i have redone the heads and clean the radiater to and a new t-stat. The car overheats when is idle with the A/C on after 20 or 25 min approximately. well something weird happend today. This I think would rule out a possible overcooling issue, if the clutch fan was seized up. 02. before you get all scared, do this - go to your temp sender, whether its early style and below the idle air control valve or the newer style (on the hose outlet by the alternator) and clean the connector. After the start process, If the idle speed is higher than the target idle then the IAC should begin closing as long as the TPS is below 2%. Using a ScanGauge II I have seen my temp go from 197f while moving to 210f while idling in 95 degree weather but no higher and the temp gauge needle never moved from 210. Temp gauge goes from normal to hot. not sure if it went back down because. temp gauge goes down when idling

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