Question about 1994 Pontiac Grand Am
Great to hear that you have dug into the car a bit already. My recommendation would be to borrow or buy a multimeter. Or if you cant get your hands on one, use a test light. I would first test the power by where the harness plug meets the fan. You will need to have the car up to operating temp and the ignition on. However, you do not need the car running to do this test. Take the negative of the test wire and ground it somewhere. Then take the positive prong and try each pin in the wiring harness. If the light lights up then at least you have confirmed you have power. If there is no light, then you will want to trace the fan wire back. In order to do this effectively you will need a manual that shows the wiring schematics. Once you have the manual, you can test the same fan wire in numerous places. Once the test light glows in one of the places, you know the break or the problem with the wiring is after that point.
Good luck, wiring is one of the hardest things to diagnose. However, these pointers will put you on the right track.
Posted on May 26, 2011
If you did all that, you must have a broken wire or a plug that is not making good connection. you have to start tracing wires. Start with the temp. sensor on the engine, it works as a GROUND...
Hope this steers you in the right dirrection ??
Posted on May 26, 2011
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Posted on Jan 02, 2017
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