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  • Coolant Temp. Sensor - Help Please

    My temperature gauge on my dash stopped working a week or so ago. I assumed it was a faulty Coolant Temperature Sensor, but when I swapped it out for a new one I still got no temperature reading. If anyone has ideas on what the problem might be or suggestions on which part to swap out next I would appreciate the help. Thank you.

    Marshall M.

  • #2
    Re: Coolant Temp. Sensor - Help Please

    is it not reading at all or stuck on a temp?
    1998 Chevy Camaro 3.8
    1997 Chevy Camaro Z28 - SOLD 7-23-2011
    1996 Chevy Camaro Z28
    2001 Pontiac Firebird Formula

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    • #3
      Re: Coolant Temp. Sensor - Help Please

      It is not reading at all. Doesn't move from zero no matter how warm the engine is.

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      • #4
        Re: Coolant Temp. Sensor - Help Please

        i would say the motor is bad on the gauge, if the sensor went bad you would be getting a SES light

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        • #5
          Re: Coolant Temp. Sensor - Help Please

          Maybe your Thermo is stuck open, or like posted gauge in car is bad.
          08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
          96' Camaro M5 to A4 conversion, alot of mods . GT35R Turbo full suspension. Built engine

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          • #6
            Re: Coolant Temp. Sensor - Help Please

            i seem to remember that grounding the wire from the sensor will cause the needle to move all the way up the temp guage. this will test of your temp guage is defective. if needle doesn't move, then guage is defective. if it does, then guage is good. if guage is good, like others said, i would check thermo, then the temp coolant sensor. hth.

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            • #7
              Re: Coolant Temp. Sensor - Help Please

              If you get a coolent temp below threshold code it kills the temp gauge but does not set a service light. I know this from experience, so this could be a possible cause.
              Daily: '02 Black Yukon Denali
              Toy: '06 Torrid Red GTO
              Gone: Powerdyned '02 Pewter Camaro
              Gone: '07 Charcoal Yamaha R6
              Gone: Ex-wife, lol

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              • #8
                Re: Coolant Temp. Sensor - Help Please

                Right on. Over the holiday hopefully I will have some time to test our your theories and get it fixed. If not, I'll be back to let you know that something is still awry! Thanks for the advice.

                Marshall

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                • #9
                  Re: Coolant Temp. Sensor - Help Please

                  i was replacing a battery in a e3500 gmc boxtruck and and hit the ground cable from the aftermarket liftgate on to the positive and the temp sensor stays at 0 with the "check gauges" light on... the needle moves at startup but goes down to 0... my boss was please...
                  the ground cable was red btw!

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                  • #10
                    Re: Coolant Temp. Sensor - Help Please

                    also.......... in my camaro... when installing remote start i ****ed up and put power to the wrong wire. and now my oil gauge does the same.............. fml. lol

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                    • #11
                      Re: Coolant Temp. Sensor - Help Please

                      magically the temperature gauge in the box truck started working again today

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