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  • Cooling Fan stopped working...

    I'm looking to find out where to begin the troubleshooting process to see why my cooling fan has stopped working on my 85 z28 Camaro (v8, 5.0). Any ideas? your help is appreciated. I am thinking about hooking up a switch to just turn the fan on and off at will. Pros and cons of a manual switch would also be appreciated. I fascinated on how things work and just need a place to start.
    Thanks, Brian.

  • #2
    There is a relay between the battery and the radiator that could be bad,or the fan it's self could be bad. There is a green wire going to that relay,strip a small spot and run a jumper wire to the battery negative or another ground and the fan should come on.if it does I would replace the relay for starters.there is a ton of info on this topic at tgo, just do a search.hope this helps.
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    • #3
      We did that with the fan and it works. I will do some research like you said. There's probably a sensor somewhere that needs to be replaced in order to get the fan running when it needs to. Do you know of any sensors that would cause the fan to not realize it should be activated to cool off the engine? Thanks.

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      • #4
        Later years had a sensor in the pass. Side head, but 85's didn't so I think the coolant temperature sensor might activate the fan.
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