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pretty bad
Typical Repair Cost:
No data
Average Mileage:
150,000 miles
Total Complaints:
1 complaints

Most Common Solutions:

  1. not sure (1 reports)
2002 GMC Sierra 2500 AC / heater problems

AC / heater problem

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2002 GMC Sierra 2500 Owner Comments

problem #1

Dec 242010

Sierra 2500 HD 6.6L V8 Duramax Diesel

  • Automatic transmission
  • 150,000 miles


Only had high blower speed. Figured it was a blown blower resistor so picked one up. Sure enough pulled it out from under the dash by the blower motor and it was nice and crispy. Screwed a new one in and good as new - all 5 speeds again. Now it lost blower speeds again a few days ago after the no start condition came back. Jumped the vehicle and it still had no blower. Drove to work a few days later and took the plastic cover off the bottom of the dash and checked the wiring and blower resistor and all good. So I think what the hell is going on? Is the blower motor bad? Maybe. Put the resistor back in the housing and plug the wiring back in, turn the key and turn the blower on. All 5 blower speeds and no problems. I think "Well that's just plain weird." I have never seen an intermittent blower problem like this. I am thinking it is the motor or possibly a wiring issue but could not find any obvious problems like a broken wire or loose terminals. Normally not a big deal but here in Michigan it's not fun when it's 10 degrees out and you have no blower for your heat. Cold toes real quick. So I was wondering if anyone has experienced a problem like this. I did notice this has a different blower than most I have seen. It's a Bosch part and looks expensive to replace. If the motor is taking a crap that's fine I just want to know if someone else has had this same problem and, if so, what the solution was. Thanks

- , Middleville, MI, USA

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