Fuel Hoses Lines/piping And Fittings problems of the 2004 Jeep Grand Cherokee

On 12/23/06 (mileage 11,948) my vehicle was returned to the dealer because the engine malfunction indicator light (mil) had illuminated and remained on after several normal driving cycles. The diagnostic trouble code (dtc) was p0455 - large leak from the evaporative system. A leak was found at the fuel pump seal and was replaced under warranty by the dealer. On 8/19/08 (mileage 21,351) the vehicle was again returned to the dealer because the mil was on. This time the dtc was p0456 - small leak from the evaporative system. A leak from a vapor hose was the cause this time. Since this emission component was no longer under warranty the repair cost of $293. 75. I believe the emission system components on these vehicles are weak. These evaporative leaks present a danger to the vehicle operators (escaping gas fumes) and the environment. In addition, the dealerships are profiting by repairing these weak components at the owners expense. A CO-worker has a 2002 Grand Cherokee and the mil comes on intermittently. The vehicle has been back to the dealer on numerous occasions and the cause has yet to be discovered. Unfortunately my CO-worker's vehicle cannot pass inspection with the light on and the dealer cannot diagnose the problem.

- the contact stated that while parking the vehicle the fuel line disconnected and leaked gas. The vehicle was towed, and the dealer who replaced the fuel line. A few weeks later the vehicle was diagnosed as having a cracked fuel line. The dealer stated that the vehicle has been repaired. The contact iwasconcerned with the safety of this vehicle. The contact has not picked up the vehicle from the dealer, and stated that the dealer refused to speak to her.