Why won't my fans turn off once they come on?
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Joined: Aug 2003
Posts: 495
Likes: 4
From: SoCal - South OC
Car: '84 Trans Am; '88 GTA
Engine: Vortec 355ci TPI
Transmission: TH-700R4
Axle/Gears: 3.73
Why won't my fans turn off once they come on?
My '88 TPI has a real mystery here. The fans will come on at the right temp, but they don't shut off - they just keep running (all wiring is stock). This started last month and we cannot figure it out. The relay was replaced and has been tested thoroughly. Is this a known quirk on these cars that has a fix to it?
Senior Member
Joined: May 2008
Posts: 833
Likes: 0
From: London, Ont, Canada
Car: 87 T-Top GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 3.27
Re: Why won't my fans turn off once they come on?
Sounds to me that your stock cooling fan switch is dieing. Its located on the passenger side head between cyl 6 & 8.
There is a way to test this switch, but I've never tested mine before. If you want to know how to test it I would suggest you PM-ing TGO member "Deadbird" and he should have some ideas on what your problem could be(switch) and how to test it.
Good Luck!
There is a way to test this switch, but I've never tested mine before. If you want to know how to test it I would suggest you PM-ing TGO member "Deadbird" and he should have some ideas on what your problem could be(switch) and how to test it.
Good Luck!
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