Question about 1994 Pontiac Grand Prix

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I have a 1994 pontiac grand prix. I replaced the thermostat which actually was siezed and replaced the radiator and it turns out the fans aren't working. How can I go about fixing the problem?

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  • Pontiac Master
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Hi this actually may not be the fans, but the heater switch have you checked to see if the fans run at all?, you can try this by getting a piece of wire about 4inches long, removing a bit from each end, locate the plug connector for the fans, pull the plug apart to expose the contacts in the plug. push in the wire on the + positive side of the plug, reconnect the plug with the wire still inside ( it may be hard to do this, so just take it easy so not to brake anything) then once you have the plug back get the other end of the wire and touch it on the body or somewhere where there is a good earth - the fans should both run, or just the one that the wire is in, if it spins then it will be the radiator switch/sensor..hope this helps happy 4th to you

Posted on Jul 03, 2010

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