Question about 2005 Chevrolet Malibu

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Where is the temp heat sensor located?

Fans well not operate due to bad heat sensor, must replace

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On a v-6 it is on the rear of the engine(closest to trans) near the upper rad hose connection

Posted on Apr 11, 2014


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Posted on Jan 02, 2017

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SOURCE: On my 1996 3.8L Camaro, the only way to get the

Which one of the coolant sensors have you been replacing or have you replaced both of them?
Just so you know there are two of them, one is for the cooling fans and one is for the guage on the cluster.
Report back with which one you replaced so we can further assist you.

Posted on Oct 21, 2009

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SOURCE: Complicated problem here. 2003 Chevrolet

A few different things have happened here, either you have a bad ground circuit, you have a brand new bum sensor, or quite possibly the pcm has an issue. If this was aftermarket sensor (Auto Zone or other), it could be faulty. Take it back and have them give you another. This way you don't spend money right off the bat. So let me understand, (1) when you turn on the A/C, fans come on, (2) you unplug the temp. sensor and the fail safe kicks in?!! Run the car until the operating temperature is obtained (220 deg fahreheit) and then turn the heater on making sure that heat is sufficient and no air bubbles are in the system. at 222 deg f, the fans should kick on. Listen for either low or high speed to engage. I am saying this to cover basic steps and work up to further diagnostics. Let me know what you have covered and I can send diagrams and further help.

Posted on Oct 24, 2010

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SOURCE: The fan doesn't work on

Can't remember where they are exactly on yours but there are a group of three or four relays either back on one of the fenders or on the firewall. One of those is for the fan.

Posted on May 16, 2011

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SOURCE: cooling fan not operating when car gets to operating temperature in a 2004 chevy cavalier

I think it could be the computer

Posted on Mar 17, 2013

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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.

Nov 01, 2016 | 2002 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

look for a red square block with 2 wires in the connector some where around the thermostat housing or in the head / block

Mar 25, 2014 | 2004 Chevrolet Malibu

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Over heating problems

Verify the fan is operating. May be burned out. Next, before replacing fan, replace the coolant temp sensor. This sensor regulates engine temp and also sends message for the fan to turn on. If it goes bad the fan will not turn on. Easy fix, $45.00.

Nov 03, 2013 | Cars & Trucks

2 Answers

Cooling fans are not coming on, what could be the problem?

Either the temp sensor is bad, or the relay is bad. or the fan motor is bad. Or you have a blown fuse.
Look for fuse first.... To test if fan motor is bad disconnect the connector to the fan and jumper it to the battery.if it spins it's good. the other two. use a component locator to find their location and replace. they are inexpensive. Temp sensor is in the cooling circuit (radiator...maybe next to thermostat) the relay will be in a fuse box under the hood.

Oct 25, 2012 | 2003 Suzuki Aerio

2 Answers

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.

Hope help with this (remember rated this help).

Mar 12, 2010 | 2006 Ford Fusion

2 Answers

Heats up in park no heat driving

cooling fans are either defective or not comming on due to bad coolant temp sensor.

Feb 22, 2010 | 1998 Ford Expedition

1 Answer

Check gauge on caprice 1994

Did u replace temp sensor with old one from bad motor? sounds like u did.....if so replace temp should be located around thermostat area....also have electric fan checked....could also be bad from old motor

Jun 26, 2009 | 1994 Chevrolet Caprice Classic

3 Answers

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

Apr 26, 2009 | 2002 Kia Sportage

2 Answers

2001 Chevy Venture Cooling Fans always running on high

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

1 Answer

Car over heating but no water coming from the vehicle, 2000 montero sport

there could be several reasons for this.#1 the theromostat is stuck closed.(the quickest way to check this is to get the engine to operating tempature, if the upper radiator hos is cold your thermostat is not open and needs replacing.#2your cooling fans are not operating.( you should have 12 volts going to the cooling fans and you have fuses/relays that allow this. they are located in the junction box located under the hood to check the relay just have the engine at operating temp and then switch the relay( i use the a/c clutch relay to swap with) if the fan kicks on then you know it was the relay/fuse. If it doesn't it could be the fan is bad ot the temp sensor on the fan is defective.#3poor circulation ofcoolant.(the water pump has to circulate properly in order to to keep the engine cooled down. If all the other componants check out then i suspect that the water pump needs replacement. You will also have to power wash the radiator. Bugs,dirt and road grime restrict the flow of air over the coils and fins of the radiator thus not allowing the the heat to be dispersed properly. please rate the solution......thanks

Sep 20, 2008 | Mitsubishi Montero Cars & Trucks

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