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Fuel systemPart report

2008 GMC Sierra Fuel system Problems

Complaints
2about this part
Share
3%of 68 total for the year
Median mileage
111,896miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the fuel system of the 2008 GMC Sierra, 3% of the 68 complaints for this model year. Where a mileage was given, the median is 111,896 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Began to smell faint raw gas fumes around the vehicle in the summer. In the autumn months the raw gas odor smell intensified and was very strong with an overcoming presence in the cabin while driving. I brought the vehicle to my shop for diagnostic. The mechanic (non Gmc garage) called back several hours later and said I had been driving a potentially disaster. He asked me to see for myself. I was able to view this first hand after he had removed the fuel tank from the vehicle. The fuel pump is mounted into a deep sump on the top of the gas tank. …”

NHTSA complaint #10668062, filed 2014-12, 130,000 miles

“The fuel lines are rusted through spraying fuel to under side of truck. The lines rusted through while driving fifteen hours strait from florida. If the fuel would have hit the tail pipe or diesel particulet filter when regenerating, there could have been a serious fire. I have been through an explosion at work and know what it is like to be burned. I only drove this truck daily two winters before I got hurt and last winter it was in florida. I haven't even changed the front brakes yet but the fuel lines are shot. Shame on GM and shame on NHTSA for not addressing this. …”

NHTSA complaint #10597507, filed 2014-06, 93,792 miles

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
201712%
201524%
201411%
201338%
201125%
201013%
200913%
200823%
200712%
200624%
200554%
200484%
200373%
200231%
2001166%
2000225%
1999264%
1998126%
1997125%
1996198%
199531%
1994158%
199334%
199213%
1989213%

Other parts of the 2008 GMC Sierra

Air bags
29 complaints
Electrical system
15 complaints
Body and structure
12 complaints
Latches, locks and linkages
11 complaints
Other or unknown
3 complaints
Brakes
2 complaints
Electronic stability control
2 complaints
Steering
2 complaints
Transmission and drivetrain
2 complaints
Engine
1 complaints
Suspension
1 complaints
Vehicle speed control
1 complaints

← All problems reported for the 2008 GMC Sierra

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology