GMC Sierra
fuel system Problems
We don't have a lot of GMC Sierra fuel system problems on file — feel free to add yours here. The most common Sierra fuel system problems occur at 139,000 miles.
The worst model years for fuel system problems are the 2005 Sierra, and the 1994 Sierra.
Worst GMC Sierra Fuel System Problems
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#1: Stalls When Idling 1994 Sierra
- Average Cost to Fix:
- N/A
- Average Mileage:
- 200,000 mi
-
#2: Decrease In Fuel Efficiency 2005 Sierra
- Average Cost to Fix:
- N/A
- Average Mileage:
- 78,000 mi