Question about 1992 Chevrolet Camaro

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1992 5.0 camaro no cooling fan except with ac

The cooling fan only comes on with the ac. Is there a relay?

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  • marktsd71 Sep 02, 2008

    Overheats and no cooling fan op. Fan comes on with ac. Where is the relay?

  • Anonymous Mar 16, 2009

    I want to know how you can find out if the relay is bad, even with voultage going threw it?

  • Anonymous Mar 12, 2014

    and ac fan not working good fuse and relay

  • Anonymous Mar 22, 2014

    no fan is coming on check fuses swap relays what next

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This is the second time I have seen this in as many days. In the last two cases one was a Ford Focus and the other a Mazda 626 and the fix was the same.
The reason the Rad fan would only run when the AC fan was on was because the Rad fan fuse was blown and the Rad fan was getting power cross fed via the AC fan circuit, at some point the AC and Rad fans must have a common power source, under normal conditions if the fuses are OK then this would not be a problem.
Check the Rad fan fuse and let me know if this is the same in your situation.
The first time I encountered this was also on a Ford Focus, have a read here:
http://forum.pcmech.com/showthread.php?t=158392&

Posted on Sep 02, 2008

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  • Chevrolet Master
  • 70,387 Answers

Yes there is a relay, but first answer this question, do you know the fans don't come on until the engine temp is above 230+ degrees F.? That is almost in the hot zone. run a scanner on the engine and watch the ECT sensor temp reading to verify proper cooling fan operation, a quick test to see if the system works is to unplug the ECT sensor, the fans will go into failure mode and turn on to avoid damage to the engine.

Posted on Sep 02, 2008

  • yadayada
    yadayada Sep 02, 2008

    on your right against the firewall between the brake reservoir and fender

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