Exterior lighting recall for 1999 Pontiac Bonneville recall announced: April 07 2009 NHTSA reference: #09E012000 number affected: 16,270 fuel system, gasoline:delivery recall for 1999 Pontiac Bonneville recall announced: February 24 2004 NHTSA reference: #04V090000 number affected: 910,873 power train:automatic transmission recall for 1999 Pontiac Bonneville recall announced: April 26 1999 NHTSA reference: #99V089000 number affected: 99,333 wheels recall for 1999 Pontiac Bonneville recall announced: April 12 1999 NHTSA reference: #99V072000 number affected: 352.

- Stockbridge, GA, USA

Fuel system, gasoline:delivery recall for 1999 Pontiac Bonneville recall announced: February 24 2004 NHTSA reference: #04V090000 number affected: 910,873 summary: On certain passenger vehicles equipped with 3800 V6 (L36) engines and certain delphi fuel pressure regulators, the regulators have a much higher than usual rate of fuel leaks. A leak can allow fuel to enter the intake manifold through a vacuum line. If the engine does not start when cranked, the fuel from the leaking regulator and a mistimed spark can cause a backfire. Consequence: The backfire can rupture the intake manifold. The rupture of the intake manifold can displace a fuel line, pulling an injector out of place, and causing a fuel leak and possible fire. Fix: Dealers will install new fuel pressure regulators with improved diaphragms. The recall will be conducted in phased mailings. Phase 1 began on June 30, 2004, and phase 2 began on September 30, 2004. Owners should contact Buick at 1-866-608-8080, Oldsmobile at 1-800-630-6537, or Pontiac at 1-800-620-7668. For detailed information & supporting documents, see the official NHTSA page concerning recall #04V090000.

- Stockbridge, GA, USA

Was getting a gasoline smell and took car in for the pressure regulator recall, dealer said it was not the regulator but fuel line. Thought this was odd and then bill was $950, almost $100 more that quote and did not receive parts back showing the problem

- Haslett, MI, USA

Regulator failure on vehicle has caused the intake gaskets to blow out. 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.

- Blue Grass, IA, USA

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.

- Duquoin, IL, USA