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definitely annoying
Typical Repair Cost:
Average Mileage:
49,696 miles
Total Complaints:
3 complaints

Most Common Solutions:

  1. not sure (2 reports)
  2. new emissions sensor (1 reports)
2003 GMC Sierra 1500 engine problems

engine problem

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2003 GMC Sierra 1500 Owner Comments

problem #3

Jan 012010

Sierra 1500 SLT 5.3L V8

  • Automatic transmission
  • 98,000 miles


The check engine light came on, so we brought the truck to our dealership to do a diagnostic test on it, and they told use it needed some kind of emissions sensor

- , Bryant Pond, ME, USA

problem #2

Apr 232005

Sierra 1500 SLE 5.3L

  • Automatic transmission
  • 49,088 miles

Out of warranty and issue starts. Code reads P0442. Clear codes OK for a few days. In the winter no issue and no codes. Could be $ 200+ to check out.

- , Windsor, ON, Canada

problem #1

Jul 112003

(reported on)

Sierra 1500 SLE

  • 2,000 miles

I purchased a brand new 2003 $36,000 Sierra. It has many extras and I would assume there would be few problems. Since I have owned it the check engine light has been coming on over and over again. After a few tries, it was diagnosed as the evaporation system either not having a part made properly or the computer program not reading it correctly. In either case I was told by GMC that there is no fix and that I would have to live with the check engine light on!! I am not happy at all about this, and when I pressed them further I was told "That's the way it is sometimes"!! I payed a lot of money for a brand new vehicle and this my problem?! Also, with the light on all the time, how do I know if there really is a problem. I can not take in the truck to be checked every day. I have a family and do not want to take this vehicle on long trips because I can not be sure it is ok. This is completely unaaceptable!!! How many other people out there are having the same problems?

- , Lake Zurich, IL, USA

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