Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.


fairly significant
Typical Repair Cost:
No data
Average Mileage:
76,156 miles
Total Complaints:
2 complaints

Most Common Solutions:

  1. not sure (2 reports)
1999 GMC Sierra 1500 fuel system problems

fuel system problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 1999 GMC Sierra 1500:

Unsubscribe any time. We don't sell/share your email.

1999 GMC Sierra 1500 Owner Comments

problem #2

Nov 012011

Sierra 1500 SL 5.3L

  • Automatic transmission
  • 96,313 miles


overall 99 gmc has been an exceptional truck - first use high end off road shocks not dealer nor parts source pieces fuel will try a fuel pressure adjuster not a factory pressure regulator. otherwise great power and exceptional fuel mileage even at 12+ years and still going strong. been a great truck.

- , Thunderbay, Ontario, Canada

problem #1

Oct 012007

Sierra 1500 4WD V8

  • Automatic transmission
  • 56,000 miles

The fuel gauge began operating in an erratic fashion by having the low fuel light come on when the tank was filled and the gauge showing empty. Sometimes it would correct itself when the vehicle was placed in park, etc. Sometimes it would correct itself while driving down the road. GMC service people wanted to drain the gas tank and replace the fuel float in the tank. My solution is to reset the trip gauge when the gas tank is filled thus telling me how full the tank is based on the trip gauge reading.

- , Madison, AL, USA

Search for these popular complaint phrases...

Not what you are looking for?