Question about 2004 Chevrolet Cavalier

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The temperature gauge does not go down when you turn the car off therefore it goes up really high when you turn it on. Replaced temparature sending unit did not help The only way to make the gauge go down is to pull the fuse in the fuse block and then it goes down.

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Posted on Jan 02, 2017

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SOURCE: Temperature gauge

Hmm, check your thermostat on correct behaviour, seen this before

Posted on Apr 14, 2009

csmock132
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SOURCE: temperature gauge not working 93 chevy 3500 5.7

What engine? 350? It is in the drivers side head. Between the 1 and 3 spark plugs.

Posted on May 15, 2009

  • 1 Answer

SOURCE: temperature gauge not reading properly. reading to

temp gauge not working and no heat on my 1997 dodge

Posted on Jan 03, 2010

  • 335 Answers

SOURCE: My 2003 Chevrolet Cavalier gas gauge doesn't work.

Hello. this is caused by a bad fuel level sender in the fuel tank. you will need to drop the fuel tank and replace the sending unit

Posted on Jun 19, 2010

  • 1 Answer

SOURCE: my car fuel level gauge sometimes goes to empty

Mine too! I have a 2007 Chevy Malibu also and I knoticed it does that or bounces up and down once my tank gets to half full. Have you found a solution? Sometimes my check engine light comes on and sometimes it doesn't.

Posted on Jul 02, 2010

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I put a coolant temperature sensor on my 96 ss Chevy impala when I turn the car on the temperature gauge goes all the way up to h and goes back down to c and does not move to read temperature


Was the gauge doing that before you replaced the sensor ?
What happens if you leave the sensor disconnected ?
And did you replace the right one ? There should be two, one for the gauge and one for the computer.

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have you tried to check overheat gauge?? some temperature sensor? isn't that faulty?? I don't mean thermostat, but sensor...

is it really overheating, or gauge is showing overheating???

long time ago I had car that had same problem.... never overheated, but still signalized high temperature.....that time it was temperature sensor probably not compatible with correct one ....

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I have a 2007 Chevrolet Equinox and had my cluster repaired for the temp gauge. Now it works but will not drop the entire way after it cools down. I was told that this is a temp problem with GM vehicles...


From what I just read about your vehicle,it has a history problem with the gauge,may be the coolant temperature sender or the gauge,it says the whole cluster will have to be changed to be fixed if the gauge is bad,found some forums and all had gauge problems.Right above the coolant temperature sensor is the coolant temperature sender,this is what sends the temperature to your gauge,the sensor sends a signal to the computer,they may have replaced the wrong one,here's a link to the sensor,the hole above it is where the sender goes,it's a one prong part,the sensor is a 2 prong part.A lot of people don't know that there are 2 types of coolant temperature gauge sending unit and sensor.

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I have a problem with the code P0118 of my 2002 Jetta GL can you help me?


Make sure coolant level is as it should be. If level is low look for evidence of leak(s). Top off fluid if necessary. The engine coolant temperature sensor is a very common issue with these vehicles and may be the cause of your issues if no leaks are found. Also a faulty thermostat cans cause the sensors to read voltage high but most likely a sensor issue. The sensor is a potentiometer (variable resistor). The computer sends 5v through one of the wires this voltage goes through a resistor which will vary the voltage based on temperature sensed by the engine coolant temperature sensor. The sensor has a negative temparature coefficient meaning the resistance will go down when temperature is high and up when temperature is low. The less resistance the more of the 5 v gets back to the computer. The PCM detects this high voltage and set the check engine light on warning you of an issue. Whe this sensor goes bad it is usually accompanied by temperature gauge fluctuation or erratic operation and the cooling fans run long or all the time even though the vehicle is cold. Hope this helps.

Feb 14, 2013 | Cars & Trucks

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2000 nissan altima temperature gauge


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Oct 28, 2012 | Cars & Trucks

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I have a 1998 Saturn SL2 DOHC with ~140,000 miles. The car runs great, but I am having trouble with the coolant temperature. When first starting the car up in the morning, the coolant temperature gauge...


When you said you replaced everything, did that include the temperature sending unit?
The temperature sensor just operates the cooling fan or fans for the radiator.
The temperature sending unit operates the temperature gauge in the dashboard. If that thing is faulty, the gauge won't work right.
If you did change the sending unit, it could be possible that the computor is screwing it up, but in my 41 years as a mechanic I never heard of it, when a computor goes, nothing works.

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The guage and fan speeds work on independant sensors. If you can remove the plastic engine cover and locate the "sending unit" for the gauge disconnect it and restart the engine. The gauge should remain cold and not move. If this is the case replace the sending unit. This should be a single wire sender located in the waterjacket of the intake manifold look in the area where the upper rad hose enters the intake.

Mar 19, 2009 | 1999 Audi A6

1 Answer

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Dec 03, 2008 | 2003 Kia Sorento

2 Answers

96 honda civic lxi overheating.


The car is not overheating if the temp gauge goes up and down by turning the lights on and off.  The gauge is giving you bad information.   You can confirm this by starting the car from cold, sitting in the driveway, let the temp go to somewhere BEFORE normal operating temp, then turn on headlights and fan blower on high, watch the gauge, then turn them off.   If the gauge moves significantly from the electrical load, you probably have a short or a bad ground connection.  

You have a short circuit or bad wiring somewhere in the front half of the car.  I don't know what thermostat switch you have replaced ... but it's not the problem .. stop buying them.  
If you are the original owner, was there an accident that may have damaged some wiring?  If you bought the car second hand,  get a carfax and find out where the thing was hit ... concentrate your wiring trouble shooting in that area.

I think it is something OTHER than the temperature sending unit or the gauge

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1 Answer

Oil Temperature going up and losing power


If your car has a alarm system on it ...it may be causing conflicts within the computer brain contact your dealer and mention this to them...Good Luck

Sep 27, 2008 | 2001 Audi A6

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