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Erratic cooling fan

(1990 Acura Legend)
in Port Orchard, WA on July 31, 2009
My Legend is an 89 coupe. The cooling fan comes, and goes off, even after the car has been sitting in my garage for 18 hours. Is there anything that can be the cause other than the temp sensor???
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Popular Answer
I suspect the cooling fan relay is sticking. The temperature switch isn't likely to turn the fan on. The relay is in the under hood fuse box (driver's side). It is the relay all the way at one end of the fuse box I think the rivers fender side.
Please let us know what you find.
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