Question about 2003 Chevrolet Malibu

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Temp sensor change out

Temp sensor 2002malibu

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Take off the connector and unscrew the TS. If the new one doesn't have sealant on the threads, use plumbers sealing tape.

Posted on Jul 25, 2009

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Posted on Jan 02, 2017

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My 2002Malibu, why won't my a.c. compressor click on when I turn the a.c. on inside the car


if your low pressure or high pressure switch is set off it will not kick in. also may be a fuse or relay. the club may also be bad.

Jul 12, 2015 | Cars & Trucks

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I have a 2003 powrstroke crewcab with the torkshift auto tranny. the trans temp gage goes up and down like it was shorted out. when this happens, the tow light on the shifter goes off and on. I have been...


The temp sensor for your transmission is bad. It is inside the transmission.(Not an external sensor). Can be changed without changing other components. Mine did the same thing. Ford Dealer changed it out.

Feb 18, 2011 | 2003 Ford F350 Super Duty DRW SuperCab

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Coolant temp sensor,TPS,Intake Air temp sensor,Transmission Fluid Temp sensor are all pulling highvoltage codes I've checked them all they are fine so I changed the computer and it didnt work Any...


Your Sensors are losing ground tap into the ground for all sensors and run a new ground back to the battery negative :-" to ground all sensors.

Nov 14, 2010 | 1993 Ford Escort 4 Door

1 Answer

I have a 95 Gran AM GT with 3.1 auto. The motor will run until it gets overheated and boils over, but the fan will not start.I have totally flushed the system,pulled and inspected the water pump, changed...


Fan operates when coolant temp reaches 226 deg.F and shuts off at 219eg.F
fan is controlled by the PCM infuts from Eng. coolent temp. sensor & Intake air temp. sensor
the yellow wire is the 5V reference and the black wire the is the PCM ground sensor
make sure your not using teflon tape on the threads of the temp sensor.
it sounds like the PCM wont turn it on. check the harness for continuity between temp. sensor and PCM harness
clear connecter - pin 17 black, pin 31 yellow

Sep 12, 2010 | Pontiac Grand Am Cars & Trucks

1 Answer

1996 a4 disconnect battery changed temp sensor


check the pigtail on the temp sensor make sure it is clean and well connected i herd that if the pigtail is bad the car won't start also check the crank sensor and the ignition control module also check the fuse panel under the hood for there is a fuse for the ignition

Mar 09, 2010 | 1996 Audi A4

2 Answers

After car has reached operating temp, if I don?t move for a while the temp. will keep rising. I notice that the fans have not been coming on, but they do turn on when I turn on the A/C. Where is the...


on your car are two sensors one is an engine temp sensor the other is a coolant temp sensor
change the coolant temp sensor that is what goes bad most of the time when the water gets to 210 degrees the coolant temp turns on of that is working change the radiator fan relay

Mar 03, 2010 | 1996 Chevrolet Impala SS

1 Answer

On a cold start my 2002 estate 2.4 gdi missfires.


Since you vehicle is 7 years old. The temperature is due for a change.

the temp sensor give the exact engine block temperature information to the computer (ECU).

An old sensor or sensor giving incorrect temp to the ECU will cause this problem.

The correct term is call close loop. When the engine at start up the computer will only count on the temp sensor to report temp.

When temp is reaching 195F,the mode change to open loop. All sensors comes into play and at the point the fuel inject will scale down for the warm up state.

Running rich condition can be cause by an old temp. sensor.

Change the sensor and the RICH condition after warm up will go away.



Aug 18, 2009 | 1999 Mitsubishi Galant

1 Answer

2002malibu loosing cooling slowly


those engine are known to have bad intake manifold gaskets that leak coolant

Dec 30, 2008 | 2002 Chevrolet Malibu

1 Answer

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.

Jun 18, 2008 | 2004 Chevrolet Impala

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