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8.0
pretty bad- Typical Repair Cost:
- No data
- Average Mileage:
- 4,300 miles
- Total Complaints:
- 2 complaints
Most Common Solutions:
- not sure (2 reports)
fuel system problem
Helpful websites
- No one has added a helpful site for this 2014 Sierra 1500 problem yet. Be the first!
A D V E R T I S E M E N T S
I've always had terrible fuel mileage since I took this truck home for the first time. Dealer always says wait till its broken in. I now have 21000km on the truck now and I'm averaging 11.2mpg. GM won't help me and I'm getting pissed off with them and I will soon trade this in on a Ford
- sako79, Surrey, BC, Canada