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What can be the problem on your 1999 pointiac grand amm se when the cooling fan only works if you hot wire it directly to the fuse box you try changing the relay and coolant sensor still did not work?
Darren52
I have the same problem on a 1999 Grand Am SE with the 3.4 engine. I had done test and research. I have found that if you test the relay box, there is no power on either 30 or 85 terminal. There should be power on 30 at all times, and terminal 85 should not have power unless the switch is on. I have tested everything and only the relay panel (or box) fails.
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∙ 18y ago
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