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cooling fans run continuously

This is a discussion on cooling fans run continuously within the LT1 forums, part of the Vehicle Specific category; i have a 1994 Z28 with LT4 hotcam kit and ported heads. It runs ok except that the idle is ...

  1. #1
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    1994 Z28 Camaro

    cooling fans run continuously

    i have a 1994 Z28 with LT4 hotcam kit and ported heads. It runs ok except that the idle is a little rough.... until i hit the gas and it smokes the tires. I took it to emissions testing and I noticed a couple days later that the cooling fans turn on as I flip the ignition switch to on and the car hasn't even started yet. They stay on until I turn the car off. I hope the emissions center didnt screw up my Computer somehow. It is the only thing I can think of. I took the connector off the water pump sensor and the fans still ran. I took the relays out and the fans shut off and turned back on when i replaced them. The engine was cold at the time so that rules out high temp switch I think. I have no trouble codes either. So what is the problem here? I am puzzled.

  2. #2
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    Mag Red
    '98 C5

    maybe your ac switch is on just enough for your fans to turn on and you havent noticed it yet....just a thought

  3. #3
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    1994 Z28 Camaro

    Sounds like an idea. I will check in a day or so and let you know.

  4. #4
    Member FUELS94's Avatar
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    1996

    Check to see if your maf sensor is plug in...Thats a sign when the fans are always on.
    1996 Z28 LT-1 (with basic bolt-on)

  5. #5
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    1994 Z28 Camaro

    I will check both it items and let you know what i find.

  6. #6
    Senior Member 5.0THIS's Avatar
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    95 Z28

    There may be a ground somewhere.

  7. #7
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    there is definitely a ground somewhere. I discovered what the toggle switch under the cigarette lighter was for....it turns the fans on whenever i feel a need to use them. I always wondered why that toggle switch was there...hehehe. I guess the owner before me read up on manual override of the fans.

  8. #8
    Senior Member 5.0THIS's Avatar
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    95 Z28

    Quote Originally Posted by z28freakout
    there is definitely a ground somewhere. I discovered what the toggle switch under the cigarette lighter was for....it turns the fans on whenever i feel a need to use them. I always wondered why that toggle switch was there...hehehe. I guess the owner before me read up on manual override of the fans.
    I was going to ask if you had a fan switch but thought it would have been obvious to you if you did

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