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Author Topic: cooling fans behaving strangely  (Read 1946 times)
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Posts: 5

« on: May 30, 2013, 08:31:33 AM »

I'm sure this is a common problem. My engine cooling fans will only work if thew AC is on.
What is the cause /fix for this little gem of electrical grief?
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Posts: 318

Car Nut!

« Reply #1 on: June 03, 2013, 11:53:40 AM »

Are you positive about that? GM has always had the strangest parameters for fan times to operate. They will usually pop on around 220-230 degrees. Near the 3/4 mark on your temp guage.

Brian - Carpe Diem

01 Pontiac Aztek GT OPT AWD 110k - 04 GMC Envoy XUV 150k

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« Reply #2 on: June 24, 2013, 04:46:59 AM »

Mine runs when the ac is on or pops on when the temp gets to about the 5/8 mark on the temp meter. Thats the way it's suppose too work.
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