Question about 2003 Pontiac Bonneville
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Posted on Jan 02, 2017
hehehe, well, you THINK you checked the resistor, but you didn't, that's the fuse or relay.
It's behind the blower motor, held into the blower motor housing by 2 5.5MM screws. You get upside down on the passenger floor and look under the dash, you'll see the motor, and an electrical connector plugged in right behind it (firewall side). I just changed mine cause after 200k miles it literally broke in half on a cold morning. They're a pain to get to, especially the back screw so good luck if you don't have a universal joint for a 1/4inch socket. Another way is to pull back the carpet, and take a razor blade to the rubber&foam floor noise dampener to cut a small hole just underneath the screw. That'll allow a small socket wrench to get the right angle to get it out. 5.5MM bolts by the way.
If it sat for a long period of time, a critter could have easily gotten into your air system, and chewed/broke it as well so might want to remove the blower motor (just a couple of screws and it slides out) to check if there's anything in there such as broken pieces or a nest. Good Luck.
Posted on Feb 15, 2009
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