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Engine temp gauge not working

This is a discussion on Engine temp gauge not working within the General Help forums, part of the LSx Technical Help Section category; I noticed today my engine temperature gauge is not working at all. Im guessing its a loose sensor under the ...

  1. #1
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    Engine temp gauge not working

    I noticed today my engine temperature gauge is not working at all. Im guessing its a loose sensor under the hood somewhere. Anyone know where to look?

  2. #2
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    Check the ECT sensor connection/wiring - drivers side, brass sensor, right by #1 cyl in the head.

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    Checked the ECT sensor and it looks fine. Lately the gauge has been working off and on. I must have knocked something else loose, this happened after i changed my spark plugs. Is the ECT the same sensor that monitors the coolant temperature?

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    Yes, ECT is engine coolant temperature. Since it happened right after doing plugs it's got to be the connector or the wiring. You need to get it fixed, the PCM needs it's input.

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