Question about 2004 Chevrolet Malibu

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Cannot find heat temp control sensor, where is it located? I want to change it so my fans well run

Fans well not run due to bad heat sensor, cannot find sensor, where is it located, somewhere close to thermostat

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  • Chevrolet Master
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Look for a red square block with 2 wires in the connector some where around the thermostat housing or in the head / block

Posted on Dec 26, 2014


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: cooling fan not coming on. 1985 chevy cavalier 2.0L

I'm not familiar with your exact car but a friend of mine had a similar problem the solution was to replace the electrical relay for the cooling fan. Consult a wiring diagram to see if there is a relay (there should be) and replace it.

The other possibility off the top of my head is a short in the wiring somewhere. Power the fan directly and ensure it works fine. If the fan is OK then the problem is likely in the wiring or wire connectors somewhere. That should help narrow down the problem. Good luck!

Posted on Dec 14, 2008

  • 175 Answers

SOURCE: 2000 cavalier 2.2L cooling fan will not come on

after you check the grond in the fan conector and all the fuses i can say its coolent temp sensor.

Posted on Mar 14, 2009

  • 6927 Answers

SOURCE: i have changed the relays and fuses checked

replace coolant sensor connector?if so can u get a thermo lazer gun to check the block temp? this will tell u if the gauge is incorect,,,go ahead a bleed all the air out of cooling system and see if that does the trick

Posted on Jul 05, 2009

  • 1547 Answers

SOURCE: 2001 chevy malibu Ls - Cooling fans on

turn ac off then the fan will go off make sure ac button if you have one isnt pushed inwait a minute fan should turn off does temp gauge inside car raise in temp after running a while

Posted on Dec 08, 2010

  • 194 Answers

SOURCE: I have 95 Chevy Lumina. March 2010 I had water

Was the car over heating before the water pump and head gaskets were replaced? Putting in a new Radiator will make it run even colder.and take even way longer than the one hour it is already taking to warm up.The computer in the car commands the engine cooling fan On/Of at a predetermined temperature.It receives this data from monitoring engine sensors such as the engine coolant temperature sensor.So if it is defective and the computer is not recognising the defect it thinks that the engine is running hot when it is realy running cold and will command that the cooling fan be on.Resulting in the fan running in 24-7 as you put it. If you want the engine to warm up faster and the cooling fan to operate normaly then I would replace the engine coolant temperature sensor and the relay for the fan circuit as well. If you need to talk to me further about this you can use the reply box below. Please let me know how this goes for you and I hope this is usefull for you. Good Luck and have a good XMASS.

Posted on Dec 16, 2010

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I have a 02 chevy malibu My cooling fans won't turn on automatically and car begins to over heat if I turn on the a/c the fans will turn on I have recently changed the cooling temp sensor & thermostat

The fact that the fans operate when in the A/C mode means that there is nothing wrong with the fans themselves or any of their associated relays. The PCM controls the activation of the fans at all times, whether it is due to the A/C controls being on, or from sensing the coolant temperature. Thus, I'd say your problem is in the Coolant Temperature Sensor circuit. Either the replacement sensor you purchased is bad (not as likely) or there is damage in the wiring or possible the PCM itself for the circuit.

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2003 chevrolet trailblazer 4.2 problem code p1481

See attached picture for location of temp. sensor, but that code has nothing to do with temp sensor. The speed of the fan does not agree with the commanded speed, you may have another bad fan clutch.


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198 mercury sable cooling fans motor

Cooling fans ( on radiator ) only come on when the engine reaches a certain (hot) temprature. There is a temp sensor threaded into the radiator end reservoir that switches a relay off and on that runs the fans. Either the temp sensor or the relay is probably bad. Normally , those fans will not be on if the car is moving , the air flow from just driving is sufficient to cool the rad. If you stopped and idled for a while , eventually the rad would heat up enough for the fans to come on.

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What causes the fan to continue to run when controls are off?

This device is disclosed which causes a fan of a heating and/or air conditioning system to continue to run until the temperature in the duct work of the system reaches a desired temperature, so as to remove all heated and/or cooled air from the system, however, the device is designed so as to not cause the fan to be actuated due to changes in the duct work temperature which are due to changes in outside temperature or causes other than the operation of the system. A sensor which is located in the duct work controls the operation of the fan in response to temperature changes only if the sensor control circuit is first energized by the operation of the system.

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Replace the sensor that controls the cooling fans.I recently had that same problem my fans were not working properly due to a bad sensor had it replace and have not had problems with car over heating are running hot.

Jun 27, 2009 | 2003 Chevrolet Impala

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2002 kia sportage temp gauge runs hot while driving

Cheak to see that the coolant fan is operating with the A/C turned on. The fan has to work to help the engine stay cool and help the A/C. When you apply heat on the control it acts to reduce the coolant temp. You will have to get the coolant fan operation checked. This can be :fan motor, fan relay, temp sensor and computer. Good luck

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either the temp sensor is bad but, it sounds like the fan relay is stuck.
replace the relay its in the fuse box.

Mar 23, 2009 | 2000 Chevrolet Venture

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