Question about 2001 Chevrolet Monte Carlo

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Temp Gauge inside car "sticks"

If the temp outside is 40 degree F - the temp gauge sticks. The check engine light kicks on after driving like that in about 15 miles. Code reads to Temp sensor - How do you replace. Purchased part, but cannot find where Temp Sensor is located? anything I need to know about changing it?
Thanks!

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  • 3 more comments 
  • Jessica Allen Dec 27, 2008

    It is the Engine Coolant Temp Sensor - sorry - I am unsure what the code was P0118 is what I believe it was. thanks!

  • missy135 Jan 16, 2009

    The same thing is happening in my car. I took it in to have it looked at and they told me that my lower intake gasket has blown. They said my coolant is leaking into my engine and this is the reason for my check engine light and no heat. I dont know if it is a sensor or not but there is a lot of gunk in my engine and my radiator. It is going to cost me about 1100 to fix it.

  • Jessica Allen Jan 18, 2009

    missy135 - my heat is working. I replaced the sensor, but still my temp gauge inside the car is not working. ??? someone told me to change the thermostat, but have not gotten around to doing this yet. I am thinking about just taking it to the dealer to fix, but I really do not want to pay dealer prices to have it fixed. I was hoping that someone here would have a little bit of insight, but ...

    I will keep everyone up to date if I discover what the problem is ...

  • Marvin
    Marvin May 11, 2010

    which temp sensor, there are more than one? give me the code. The sensors used by the engine have nothing to do with the outside air temp sensor for the dash read out.

  • donald lewis Dec 18, 2011

    I have the same problem with my 2001 monte carlo the temp gauge stop working I replaced the temp sender and the themastat no help I dont understand want the cold has to do with it ill have to wait for sping right now in calif. it is 36 F at night

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  • Chevrolet Master
  • 15,010 Answers

Yadayada ,don't know where you came up with that . This vehicle has just one ECT - engine coolat temp. sensor . It's an input for the PCM - engine computer . The PCM sends this info to the instrument cluster over the class2 serial data bus. . The proper way to diagnose a problem like this would be to hook up a professional scanner an check input data to the PCM , an instrument cluster . Not guessing an replacing parts .
Engine Coolant Temperature Gage
The IPC displays the engine coolant temperature as determined by the PCM. The IPC receives a class 2 message from the PCM indicating the engine coolant temperature. The engine coolant temperature gage defaults to 60°C (140°F) or below if:
• The PCM detects a malfunction in the engine coolant temperature sensor circuit.
• The IPC detects a loss of class 2 communications with the PCM.

What engine ? could have come with a 3.4 or 3.8 L .
Engine Coolant Temperature (ECT) Sensor (L36)
Left side of the engine, below the thermostat outlet

Engine Coolant Temperature (ECT) Sensor (LA1)
LH side, top of the engine

Both are close to the thermostat housing , do you know what an where that is ? Follow the top radiator hose to the engine , should be near there . Look at the new part ,can't you match it up.

Posted on Jan 02, 2018

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leetamara
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SOURCE: Temp Sensor

The temp sensor known as the engine coolant temp. sensor tells the computer if the engine is overheating and so forth and tells the injectors how much fuel to give the engine. The temp. sending unit is what controls what your guage reads. It sounds like you need the temp. sending unit. It located near the thermostat housing with a single pole connector.

Posted on Jun 20, 2008

fastboyz
  • 674 Answers

SOURCE: 1997 Oldsmobile Aurora Outside Temp Gauge

the sensor is in behind the nosecone. but this should not effect the ac system . it would it the inside temp sender said that in the auto mode only. put it in defrost mode and the compressor should be on if not you have another problem (maybe low on freon)

Posted on Aug 26, 2008

  • 50 Answers

SOURCE: 1997 Olds Aurora A/C Issues

The outside temp sensor is located in front of the radiator at the bottom of the radiator....It should have a two wire harness pluged into it.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jonathan_3a3c556b4b17d1d2

Posted on Aug 26, 2008

csmock132
  • 4669 Answers

SOURCE: 2002 gmc van overheatig

It has a leak. Fill up the radiator and the coolant tank. Then restart it and check for leaks.

Posted on Mar 13, 2009

SOURCE: on my 1989 k1500 350 TBI, the engine temp gauge

The sender is on the driver side cylinder head between cylinders 1 and 3. The single wire connector to the sender gets very brittle over time from being subjected to heat from the exhaust manifold. It's somewhat common for them to break. Give that a look as well as the wire to it.

Posted on Apr 17, 2009

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