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Showing results for tags 'lb7'.
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Hi there, I have been having an issue with the HVAC in my 2002 GMC Sierra 2500HD duramax w/ auto climate control. The blower would intermittently stop working from time and time, and sometimes would work fine for days. However just recently it stopped working altogether, right during a cold snap of course! After researching all over the net, I learned the most common problem was the blower motor resistor (or in my case the HVAC control module). So I replaced it hoping for a quick fix. But still didn't work. Ive tried disconnecting the battery and resetting the system, ive checked voltage all over and the control module is getting power but is not sending power to the blower. I bench tested the blower and it works fine. All fuses are good. I'm not sure what else to look for. I am at the point where I'm considering taking it in, but of course due to the holidays I cant get my truck in to any shop until the new year, if I haven't froze to death by then. Any help would be greatly appreciated! The picture is to show the type of control module I have. (Pictured is the old one, new one is identical)
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Have an excellent drive-line for your conversion/project. It's a 2002 Silverado 3500 4X4 dually, bed and frame rusty. Frame would not pass NY inspection. Duramax 6.6 Turbo Diesel, Allison 5sp auto, 2 speed manual transfer case, 373 gears, nice tires on 16" budd wheels, dump works. Under 70,000 original miles, runs & drives excellent. Would like to trade for a streetrod project, backhoe or sell it for 4K. Located in Champlain, NY 12919
