8.0

pretty bad
Typical Repair Cost:
No data
Average Mileage:
103,000 miles
Total Complaints:
1 complaints

Most common solutions:

  1. not sure (1 reports)
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problem #1

Nov 302007

Sierra 1500 1500 V8 5.7L

  • Automatic transmission
  • 103,000 miles

I have a 1991 GMC Sierra 1500 pickup and last year, when it got really, really cold the fuse under the dash blew, causing the electronic heater controls to go blank and of course, i couldn't defrost my windshield, effectively turning my family into a 1 car family. At first i just thought it was nothing more then a bad fuse, but it kept happening. Every time i replaced it it would immediately blow. When i took it into the shop, the mechanic called back a few hours later telling me it was just a fuse. Now, i'm not a "car guy" but i knew it was something more then that. My uneducated guess is that the heater's bearing that are original, gets cold, causes the grease to thicken and the old motor just can't handle it, causing the fuse to pop and it will not take another fuse without blowing until the weather gets warm and loosens up the grease. Does this sound feasible? or is it another problem?

- tmushung, Rapid City, SD, US