Other Fuel System Pump Problems of Buick Rendezvous

My vehicle has been picking up speed for no reason. The vehicle was not taken to nor taken to a dealer for diagnostic testing or repairs. Also, the fuel pump is not working. I can fill it up with gas and the light will still turn on. Maybe after driving for a couple miles or making a turn the light will turn off.

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No acceleration,when I go up a hill no acceleration, or when I go to get on the highway no acceleration, and very dangerous. I went to dealership for a diagnostic test and I replaced fuel tank pressure sensor and vent solenoid, no acceleration. I went to another dealership for diagnostic. They recommended that I replace 3 electrical harnesses and connectors $1350 dollars parts and labor too much for me and that may not solve my problem. I told them the problem was corrosion in the connectors to the fuel pump $160 dollars later they agreed with me. Still dangerous.

I am having trouble out of my vehicle. I have replace several parts and still have not solved the problem. For instance, when I drive my car and cut it off I have to wait 30-45 mins. Before it will start again. I have changed the fuel pump 3 times and other parts of the car and I have not yet found a solution to my problem. I have had the truck for a year and eight months. The vehicle is motion but it cuts off and I have to wait 30-45 mins. Before my truck can restart. It's been going on for some months and I have changed many parts and it still does the same thing.

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Tl- the contact owns a 2003 Buick Rendezvous. The contact stated that fuel leaked from the fuel tank after getting the fuel pump replaced. The vehicle was taken to an independent mechanic where the technician diagnosed the inlet valve was leaking. No repairs were made to the vehicle. The manufacturer was made aware of the failure. The failure mileage was 100,052. Djr.

Filled tank and parked in garage. Next morning garage had extremely strong gasoline fumes. Backed car into driveway. Found fuel on garage floor. It was running out of the tank at the junction of the fuel line to the gas tank. It appeared to be the seal between the fuel line (where the gas runs down into the tank when you fill it) and the tank, the intake valve. The leak was severe and dangerous, too dangerous to drive to the dealer 30 minutes away. Choose to drive it to a local garage for repair. The fuel tank and fuel pump seal were replace at a cost of $936. There is an NHTSA campaign id # 09v349000 on this issue. On the gm recall site, there are no recalls listed. We called the Buick number listed and were told that there was no recall, but the issue is being escalated for review. This is a potentially disastrous situation, potential file or explosion hazard.

Tl- the contact owns a 2007 Buick Rendezvous. The contact stated while traveling approximately 50 mph, the vehicle stalled without warning. The contact had adjusted a wire in the electrical box and was able restart the vehicle. The contact was not been able to start the vehicle without adjusting a wire in the fuze box intermittently. The vehicle was taken to a repair shop who diagnosed that the fuel pump assembly and the fuse box had needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The approximate failure mileage was 80,000.

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