Tank Assembly problems of the 2003 Chevrolet Avalanche

Two problems related to tank assembly have been reported for the 2003 Chevrolet Avalanche. The most recently reported issues are listed below.

1 Tank Assembly problem

Failure Date: 01/01/1901

Consumer was told that the 2003 Avalanche was not a standard tank and that the fuel leakage issues were not their responsibility. The consumer was told the gas tank had a manufacturers defect that caused it to be too thin around one of the seals. The tank was so thin, that it could be pressed as if it was soft rubber. The soft area had become so weak, that gas was leaking from the vehicle.

2 Tank Assembly problem

Failure Date: 01/01/1901

2003 chevy Avalanche fuel tank began emitting a gas smell when the vehicle was more than half full. Over time small puddles of gas could be seen under the vehicle when it was stopped. The mechanic found that the tank had a manufacturer's defect, which caused it to be too thin around one of the seals. The tank was so thin in that area, that one could physically press it down like soft rubber. The soft area had been steadily weakening the seal until it finally failed causing gas to leak out of it.


Other Gasoline Fuel System related problems of the 2003 Chevrolet Avalanche

Tank Assembly problems
2
Gasoline Fuel System problems
2


Safety Ratings of Avalanche Cars
Fuel Economy of Avalanche Vehicles
Avalanche Service Bulletins
Avalanche Safety Recalls
Avalanche Defect Investigations