Question about 1998 Saturn SL

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Overheats when idling. relay was replace and still overheats. fan runs when the a/c is on

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When the engine heats up the fan should come on at this time. It is must be the relay or switch. There should be different relays for the AC fav and the cooling fan, even if its the same fan. If you have to you can wire it up directly, so when the ignition is turned on the fan will always run.

Posted on Aug 22, 2010

  • phil_john590 Aug 22, 2010

    fan will run but not all the time. it ran while the a/c was running. could it be a sensor or fan modulator?

  • metal scrape Aug 22, 2010

    A wiring diagram would be useful to test power along its way to the fan. Hope this helps.

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 the grand cherokee is pretty much under the passenger head light. Have fun not easy to get at. 

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