My 1999 pontiac bonneville exploded when the key was turned in the ignition & fire shot out from under the hood. When the key was turned off, the fire stopped. I had the car towed to a private mechanic who replaced the a fuel injecter & upper intake plenum (which was in pieces from the explosion). My bill was $430.63. In june 2004, I received a recall letter from gm corporation saying there was a safety issue with fuel pressure regulator diaphragms leaking. The letter described the following: "a leak can allow fuel to enter the intake manifold through a vacuum line. In low battery conditions, if the engine does not start when cranked, the fuel from the leaking regulator and a spark can cause a back fire. The back fire can rupture the intake manifold, causing a loud bang. The rupture of the intake manifold can displace a fuel line, pulling an injector out of place, and causing a fuel leak. If there is an ignition source, a fire can result." this letter described exactly what had happened . The lights had been left on in my pontiac which caused a dead battery. A battery charger was connected to the vehicle when the explosion happened. When we tried to start the car again, the fire started again where the intake manifold was located. I made a request for reimbursement to gm. My file # is 1-260698900. I was asked to take my car to a dealer in salisbury for an inspection. When I took the car in on sept. 29, 2004, the fuel pressure regulator was replaced. According to the recall letter, an inspection will be made and, if necessary, the regulator will be replaced. So the recall condition was fixed by this replacement. Gm refuses to reimburse me for my repair saying I have no proof the recall condition caused the explosion. I was given no recourse to dispute their decision. The condition described in the safety recall letter was exactly what happened to my vehicle in february. Help.
1999 Pontiac Bonneville fuel system complaints
Page 2 of 2: complaints 11 to 23 of 23, newest first, as owners wrote them.
Request for reimbursement for damage to engine from a pulled fuel injector.*mr while pulling into a parking lot the vehicle stalled and would not restart. The vehicle was taken to the dealer who determined that a pull fuel injector flooded the injector, pistons, cylinders, crankcase and engine with gasoline which resulted in a blown engine. A 1998 replacement engine was installed from another vehicle. The consumer requested reimbursement because he believed the failure was related to a recall (recall #03054b). The consumer filed a claim for reimbursement but was denied.
Regulator failure on vehicle has caused the intake gaskets to blow out.*mr the vehicle has been taken to the dealer twice to have the plenum replaced due to fuel pressure regulator malfunction. The consumer was told that both times the regulator failed causing a backfire, blowing the intake gaskets. This in turns caused the exhaust tube in the plenum to get too hot therefore burning a hole in the plenum. The consumer finally eceived a recall not related to the problem and submitted paperwork for reimbursement. The manufacturer only reimbursed the consumer a portion of what was actually paid in repairs.
I've had major problems with my 99 bonneville, costing me over $2,400. It started at 64,000 miles (6/26/02) with a backfire caused by a faulty fuel pressure regulator, which now has a service recall (a little too late); that cost me $300. A week later, the upper manifold plenum leaked causing the engine to flood and die; I spent over $500 on that little project (replacing the manifold and cleaning the engine). It never ran right after that; I had extremely low gas mileage and lack of power, and the engine light kept coming on and off and it stalled on many occasions. After about six months of this, it died again on 3/22/03. This time, it spun the main bearing and the lower half was ruined. I went to three different mechanics before I could find someone willing to touch it, but I found a good mechanic that rebuilt the lower half (versus replacing the engine) for $1,600. I still have the car and it seems to be performing well, but you never know. Im going to include all of my repair costs for reimbursement (through the fuel pressure regulator recall notice) and see what happens. My mechanic says that all of this is related to the backfire and the plenum leak.
My 1999 pontiac bonneville equipped with 3800 v6 (l36) engines and certain delphi fuel pressure regulators, the regulators was found to have a pin hole leak in the diaphram causing fuel leaks and engine backfire. This is similar to safety recall 04v090000, yet pontaic says none of the pontiac bonneville are included why not??? Sounds like it is also a problem on this car also.
The fuel pressure regulator failed will driving. When this occurred, the vehicle lurched forward before stopping, lost power brakes and steering. The dealership replaced the part, but the problem recurred within 12,000 miles. *ak *scc
Fuel pump.
The fuel sensor was faulty, which caused the vehicle to leak gas.
The consumer states that the fuel regulator is leaking fuel , causing the vehicle to have a strong fuel smell. The mechanics told the consumer that if not replaced right away, this may cause a fire, the fuel regulator has been replaced twice since the consumer owned the vehicle.
The consumer states that the fuel regulator is leaking fuel causing the vehicle have a strong fuel smell. *mr
Intake plenium on vehicle is broke. Please provide any further information.
Composite intake manifolds on pontiac, buick, oldsmobile, chevrolet with 3.8 l engines are failing and dumping coolant into engine causing repairs to cost from $400 to engine replacement. Gm is aware of this problem ( see gm service bulletin 01-06-01-007)
Gas gauge does not read correctly. When fuel will read full until 150 miles. Also after filling up, will show empty for a long time after. Dealer cannot correct problem.
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