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What temp should a Chevy Cobalt run in slow stop and go traffic? At what coolant temp should the fan kick on?

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Its completely normal for the cobalt to reach those temp in stop and go traffic:http://www.spobd2.com/wholesale/sds-for-suzuki-motocycle-diagnosis-system.html Don't worry about it.

Posted on Oct 18, 2013

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Posted on Jan 02, 2017

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SOURCE: my 1998 chevy cavalier runs hot in slow traffic.

have you replaced the coolant tempeture sensor.

Posted on Oct 31, 2008

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SOURCE: Chevy cavalier temp guage stopped working on instrument panel

if the wiring is good and there are no blown fuses, likely the gauge itself will have to be replaced

Posted on May 30, 2009

  • 634 Answers

SOURCE: coolant fan temp sensor location on a 2003 chevy venture

located in thermostat housing or in intake nearby (where top hose connects from radiator to engine)

Posted on Jul 16, 2009

outdoorsman5
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SOURCE: COBALT TEMP GAUGE READS 250 DEGREES BUT ENGINE

Probably the temp gauge itself. Most of the time it doesn't have a problem but sometimes they do go bad. Did the car ever overheat prior to changing the solenoid?

Posted on Jul 30, 2009

  • 67 Answers

SOURCE: Overheats while Idling.

there are 3 cooling fan reays in a 98 aurora and they are computer controlled. the low speed fan relay should turn on when the ecu detects a temp of 229 degrees and should turn off when the temp has dropped to 216 degrees. it is best to check the temp with a computer monitor so you can see what the computer is reading. If you turn the a/c on you can see if the fans are operating. If they don't come on with the a/c you may have a problem with the high side a/c switch. A bad thermostat can cause the fans to come on late.

Posted on Jul 08, 2010

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1997 Chevy Lumina 3.1 engine. The cooling fans aren't coming on tell the car heats up to over 250 degrees.


Did you check for applicable trouble codes? Anything? Some of the national brand auto stores will check codes for free.
Check the coolant temp sensor, if you haven't already? Some makes and models if you turn on the ac, the fan/s will run. If you unplug the coolant temp sensor, the fan may run.
I might want to use non--contact infrared temp gun just to double-check temp gage.
Have you ever checked thermostat or coolant flow through the radiator. I understand it only heats at idle.

Mar 14, 2016 | Cars & Trucks

1 Answer

A/C cooling fans, A/C only cools when car is in motion????


Cooling fans are most likely not coming on. I believe that vehicle has two fans..side by side, one closer to passenger side is ac fan..should come on when you cut ac on. I would check coolant level some sensors will not read temp correctly unless submerged in coolant...fans should kick on when car reaches somewhere around 185 to 205....should be a plastic fuse box under hood that houses fan relay...also should be identical relays that run headlights or something else..you can swap relaysaround to see if the relay has gone bad. If fans aren't coming on or one of the two is..turn the one not coming on by hand to see if fan motor has frozen up

Sep 18, 2015 | 2005 Lexus RX330

1 Answer

Position of the temperature sensor


This is a normal condition for this model and many more. There maybe an issue with your engine oil or coolant systems. If you can flush the radiator & coolant system clean on next service & replace with a fresh quality brand of new coolant then you may have solved some of the problem. The other is if your rad fans are kicking in enough or at all. So do a stationary check in your garage. let the engine warm up on idle. Then when it reaches a heat that will kick in the fans check what the Temp-gauge is reading & make a note.
You may have a weak oil pump or water pump. Check the pumps records & see if they are newish or first day. Water circulation is very important in a cars system. So in slow traffic the engine is running at low rev's & gets hot due to slow air speed through the rad. So the water pump is there to keep the pressure up at all times. It could be the No:- problem with your car.
After that get an engine oil pressure test done & compare with the results data spec-sheets from its manual.

Jun 02, 2014 | 2003 Saturn VUE

1 Answer

Overheating gage when stop & go -2004 chevy tahoe


natural for engine temp to rise in Traffic - Until Themostat opens ) cooling fan sensor kicks on fan . But Antifreeze is not just a Cold weather item . Coolant is Absolutely Necessary for Hot Days . You must be full to recovery bottle setting of cold when checked prior to start up . Coolant for your make / model is Reddish - Pink colour and should have a reading of -25 thats negative 25 degrees the Lower the Better even - 50 .. Why ?? - 50 is 50 %% antifreeze / Coolant Concentrate MIX Gives Hot weather cooling Ability or very cold weather starting / winter HEAT .

Mar 14, 2014 | 2004 Chevrolet Tahoe

3 Answers

Coolant temp rise to around 210 degrees when idling or in stop & go traffic bur drops back to around 196 when cruising. Is this normal?


completely normal those readings are perfect this car comes with a 195 degree thermostat,210 is fine for stop a go traffic remember a cooling system with the proper amount of coolant in it and under pressure will not overheat till about 240 degrees your in great shape no conerns!!!!!...

Sep 01, 2010 | 2006 Chevrolet Corvette

1 Answer

My 1993 corvette over heats at every stop and in slow traffic iam affraid to drive any where fear of my car over heating


This could be cause by a variety of problems such as low coolant, bad water pump, head gasket leak, manifold leak, malfunctioning fan clutch, broken electric fan, etc etc.

If you have an electric fan, it is designed to turn on triggered by a temperature sensor located near your top rad hose mounting on the intake manifold. If this sensor is broke you will over heat without the fan kicking in at stops. Same with a clutched fan. Could be not moving enough air at a stop.

Check your coolant levels and let your vehicle run while watching to be sure your fan kicks in. Keep your fingers away from it while running. It can start up anytime. If all is well, you may have a plugged rad or restricted rad.

Jun 30, 2009 | 1993 Chevrolet Corvette

2 Answers

2006 Radiator Problem


1st what temperature thermostat got installed,also make sure it wasnt put in backwards,if ok start your car let it run when the temperature rise is the fans kicking on to cool the radiator,if they are as soon as they kick on ,with a rag squeeze the top radiator hose,caution it will be hot,you should lose pressure when the fans kick on in the hose it means the thermostat is opening,if ok, check bottom hose to see if you feel antifreeze running thru to let you know its circulating,if not its your waterpump,one thing you can do is when the car is cooled down take off radiator cap and squeeze bottom hose quick 4 times in a row to make sure you dont have an air pocket,if this helps please vote me a fix ya

Jul 18, 2008 | 2006 Chevrolet Cobalt

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