Question about 2004 Chevrolet Impala

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Temp Sensor im trying to change the tempature sensor on my 04 chevy imapla. Its a 3.4L and im having trouble finding where it is located. The box on the sensor says SU109 Temp sensor. Hope that helps :/ i appreciate it. P.S. My impala temp gauge has been reading high for a bit but when i get home i can shut the car off and turn the ignition on and the gauge will reset back to zero. Then when i start the car it reads that the temp is normal. So i think its the temp sensor if you think its something different please let me know.

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  • jrgrampa May 11, 2009

    My temperature guage goes up to hot when the coolant temp is normal and there is no warning light. When I shut the engine off, the guage stays up around the normal range. I can reset it by disconnecting and then reconnecting the battery. What is causing this?

  • Anonymous Mar 20, 2014

    engine temp gauge starts upper than 0 even engine is cold



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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


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