Question about 1990 Buick LeSabre

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My air and heat keep blowing with the car off

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Look for the lower relay,along the fire wall under the hood.It is under the long plastic cover.Unplug the relays one at a time untill the blower cuts off.The one that turns the blower motor off,is the one to replace with a new one.

Posted on Oct 08, 2009

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