Fuel System complaints by model year
Which parts fail
Components named in complaints (fuel pump, injectors, fuel tank, hybrid and EV propulsion).
Mileage when the problem started
What owners report
Tl* the contact owns a 2008 Chevrolet Avalanche. The contact stated that there was a fuel odor coming from the vehicle. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was 143,000.
My 2008 Avalanche with 72,000 miles on it, is completely rotting away underneath. I've had to replace many parts, shocks, autoride compressor, fuel pump module, had body rust repaired, have had 3 door handles fall right off.. Last 2 mechanics told me that all parts located underneath truck are rotting away and that I need to get rid of truck because it is not worth repairing. I have tried to work with GM but they claim that its normal wear and tear. Paid 30K for truck dec 2011. Have membership to car wash, and keep it very clean. Undercarriage included. Cant get my service suspension light to shut off, even the dealer cant. This truck should not be rotting away the way it is.. Please help.
The contact owns a 2007 Chevrolet Avalanche. The contact stated that there was an abnormal odor of antifreeze inside the vehicle. The vehicle was taken to an independent mechanic who informed the contact that there was excessive rust to the subframe and one of fuel tank strap. Additionally, the manifold was missing bolts and the heater core was fractured. There were no warning lights illuminated. The vehicle was taken to an inspection station and the vehicle was taken off the road. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 154,000. The VIN was not available.
Tl* the contact owns a 2007 Chevrolet Avalanche. The contact stated that the fuel pump and the connection pipe to the fuel tank were corroded. The vehicle was taken to a repair shop who diagnosed that the fuel pump and the fuel connection pipe needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 132,500.
After driving the smell of fuel comes from the engine by the drivers door. I contacted GM and my vehicle does not show on the list of this known recall. They passed me to a local dealership which stated my vehicle is not one that falls under the recall and admitted they had fixed others with similar issues. This is appalling that a manufacture can assist some customers but not all. I will never purchase another GM vehicle again.
Tl* the contact owns a 2005 Chevrolet Avalanche. The contact stated that while refueling, the fuel that was being pumped into the vehicle began pouring out. The vehicle was towed to the dealer for diagnosis where the fuel pump was replaced. The contact attempted to refuel the vehicle and fuel spewed out from the filler neck, saturating the contact with gasoline. The vehicle was returned to the dealer where she was informed that the vehicle needed a new canister and sensor. The vehicle was repaired. The failure mileage was 86,000 and the current mileages was 90,000.
Module kit,f/tnk f/pmp,lvl s/fuel pump module assembly is leaking fuel, becase of poor grade plastic and metal construction, this also happened on my 2002 trailblazer but was covered by a recall,no such recall covers my 2004 avalache even though it is the same problem, cost to fix 870.89 estimate, to remove gas tank and replace fuel pump module assembly, cant send pics have drop gas tank and that cost is 250.00, vehile stars slowly then when parked empties fuel lines on top of tank then on to ground very dangerous, service manager big jim [phone] , says this is a common problem, he knew what it was before inspecting on houste, if 2002 is covered why is 2004 not covered? Want my 1000.00 back from GM
Rear hydraulic brake lines rotted and leaked fluid causing loss of braking. Last year I had to have the rear brake calipers replaced due to excessive rust and rot. The mechanic performing current repairs stats that the front hydraulic lines are rusting and will have to be replaced soon. The front calipers have rotted out bleeder valves. The front calipers will have to be replaced as a result when the front hydraulic lines are replaced. Check engine light was diagnosed to an evaporative emissions system leak. The leak was traced to a damaged plastic fitting connected to the fuel pump at the top of the fuel tank. The fuel pump metal was rotted causing the joint to expand damaging the fitting and causing the leak. I do not trailer a boat and the truck has never been immersed in salt water. …
Related recalls (2)
Fuel system, gasoline
GM is recalling 27,188 my 2009 Cadillac escalade, escalade hybrid, escalade esv, and escalade ext; Chevrolet avalanche, suburban, tahoe, tahoe hybrid, and colorado; and GMC yukon, yukon hybrid, yukon xl, and canyon vehicles.
Remedy: Dealers will install a new fuel system control module free of charge. The recall began on May 18, 2009. Owners May contact Cadillac at 1-866-982-2339, Chevrolet at 1-800-630-2438 and GMC at 1-866-996-9463 or at…
Fuel system, gasoline › Storage › Tank assembly
On certain pickup trucks and sport utility vehicles, vehicles, during a 30 degree left angle frontal impact of sufficient severity, a tear could develop in the mid-frame cross member at its attachment to the left frame rail.
Remedy: Dealers will install a fuel tank shield. Owner notification began February 20, 2003. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a…
Frequently asked questions
Which Chevrolet Avalanche years have fuel system problems?
By NHTSA complaints, the 2002 (15), 2004 (11), 2005 (9), 2007 (6) and 2008 (6) model years. Fuel System complaints make up 3% of all complaints for the 2002.
Is there a recall for Chevrolet Avalanche fuel system problems?
Yes — 2 recalls, including 09V-154 (fuel system, gasoline, May 6, 2009); 03V-019 (tank assembly, Jan 27, 2003). Recall repairs are free at authorized dealers; check a specific car with the VIN recall check.
At what mileage do Chevrolet Avalanche fuel system problems start?
Across all years, half of the complaints with a recorded mileage happened before about 94,000 miles; 20% happened before 50,000 miles.
What part fails most often?
Owners most often name the delivery › fuel pump (8 mentions), followed by the storage › tank assembly (5).
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.