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engine temp out of whack

This is a discussion on engine temp out of whack within the General Help forums, part of the LSx Technical Help Section category; I have a 00 z28 (stock) and on long drives on the freeway usually an hour or so the temp ...

  1. #1
    Member c5z28's Avatar
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    engine temp out of whack

    I have a 00 z28 (stock) and on long drives on the freeway usually an hour or so the temp gous whacko. It will go from like 209 to 230 in a seconds time and then go back down to the normal temp, it will do this within a few seconds of the last, and yesterday the temp went up to 260 in like 1 second then went back down to op temp, I took it in to the chevy dealer and they said no thrown codes or shit, now I am out 100 bucks for them to tell me they dont fucking know?! I am taking it to infineon tomorrow, it did the same thing one time before I got to the track then everything was fine. Can someone help?
    Last edited by c5z28; 06-10-2008 at 02:57 PM.

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    Member blk_jaws's Avatar
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    mabye its the ect sensor (engine coolant temperature sensor), like 20 bucks at the parts store.
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    Thinking the same thing, ECT sensor/connector/wiring.

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    Member c5z28's Avatar
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    thanks I need to pick the car up today, where exactly is the sensor located?-thanks

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    Drivers side front of the head, right near the #1 cyl exhaust. Dealer should've checked it during their diagnostics?

  6. #6
    Member c5z28's Avatar
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    No they didn't I called and asked them, I even talked to the mechanic who worked on it, he plugged it into the computer nothing wrong-ok give me 108 bucks. I asked him if he did a physical search but in short no-soooo done with dealers forever you motherfuckin bloodsuckin asshats. and thanks to you who are tryin to help

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