Question about Pontiac Bonneville

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The heater fan in our 1998 pontiac bonneville wont shut off unless we unhook the battery. hook the battery baxck up, its going full bore again. why?

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Hi, the likely problem is a shorted relay. Remove the cover from the passenger side pillar in front of the passenger's door to expose the relay panel. Find the blower relay. If there is no map, pull the relays out one at a time and reinsert until you find the one that turns the blower off. When you push it back in, does it click? If not, it is shorted. You can substitute one of the other relays temporarily to verify that a new relay would solve the problem. Please let us know if you have questions, and thanks for using FixYa.

Posted on Dec 31, 2010


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