Tank Filler Pipe And Cap Problems of Chevrolet 1500

My 2004 chevy envoy has a crack in the neck of the fuel tank. The service engine soon light was on last year and I took it to thomas Chevrolet in west chester, PA who replaced the gas cap. The light came back on and I out of frustration I waited until my inspection check to have it repaired. Upon taking it to a local mechanic recently they replaced a solenoid which made the check engine light go off. However within a week it came back on. Today I was told of the problem with the crack in the fuel tank after they performed more diagnostic tests. This seems like it could be a problem from the manufacturer (gm) and also poses a safety issue. Fuel can be smelled when standing outside the vehicle. I am concerned about the safety risk this could pose if this is a problem noted in other vehicles. My on-line research indicates the chevy trailblazer had issues with fuel tank cracks. I don't know what I could have done to prevent this problem or even cause it, therefore I would expect the dealership would be held accountable.

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