1999 Pontiac Bonneville: engine stalls while driving

Filed Jun 20, 2014 · Electrical, Engine · 130,000 miles · MA

Upon accelerating onto the highway, after reaching highway speed, vehicle stalls and would not start. Flooding engine, gasoline coming out of exhaust, engine would not restart. After research and replacing leaking lower intake manifold, this was not my problem there was no leak. After more research I replaced more sensors and eventually cylinder gaskets and lower intake gasket again. Still engine would not start. After 2 years of car sitting I unplugged maf sensor and then it started finally. Faulty maf sensor but no way to find out unless it is unplugged because sensor did not give off any pertaining fault code pointing to the problem specifically.

Filed Feb 13, 2009 · Electrical · 218,657 miles · MI

Car stalled while driving home at night. No electrical power what so ever including emergency flashers. Nearly had an accident and had no way of indicating to other vehicles that I had a problem. No lights, no power steering, no brakes, no brake lights, no emergency flashers. After slowing down to appx. 25 MPH, power came back on. I shifted to neutral and was able to start the car and drive it home.

Filed Jun 29, 2006 · Electrical, Engine · 127,000 miles · NJ

Dt: the contact stated while driving at any speed MPH on normal road conditions the engine stalled, no warning lights iluminate in the dash board. The vehicle was taken to the dealership who determined no problems in the engine or electrical systems. The contact continues to deal with the stalling engine.

Filed Nov 29, 2004 · Engine · 74,000 miles · CA

A hole developed in the plastic upper intake manifold where coolant runs next to the egr valve, resulting in the car suddenly stalling and not able to be restarted, because of the coolant being introduced into the air fuel mixture. It is my understanding that this is an ongoing problem that pontiac is aware of.

Filed Aug 30, 2004 · Fuel system · 96,850 miles · PA

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.

Filed Aug 19, 2004 · Engine · TX

While driving 70 MPH, the vehicle stalled. This caused the driver to drift to the side of the road. The consumer had the vehicle towed to the dealership for inspection. The mechanic informed the owner that the intake manifold had cracked which caused the engine to fail. *jb the intake manifold melted and allowed coolant into the cylinder. *sc

Filed Jul 19, 2004 · Engine, Fuel system · 64,008 miles · IL

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.

Filed Jul 14, 2004 · Acceleration · 45,000 miles · MO

When attempting to accelerate the vehicle stalled.

Filed Nov 24, 2003 · Engine · 58,500 miles · MO

1999 bonneville; 58,000 miles; it had been stalling intermittently for several weeks -- especially during turns. Before I could take it to the dealer, the car loses power on hwy 63; fortunately, I was able to pull over. The mechanic reports engine has locked up because coolant has leaked into the engine due to a known problem by gm of coolant leaking into engine and thus destroying the engine. Total costs to replace the engine, the manifold and damaged the starter amounted to a repair bill of $5300 after a 10% existing customer discount plus state taxes. I checked the odi databases for '99 bonneville's and almost a 1/3 of the 111 complaints relate to the same problems I had before my car engine was damaged and similar problems of coolant leaks into the engine. Does there have to be a injury before the federal safety agency will act? Why did the recent recall for the 2000 and newer models not cover the 1999's when gm has known of this issue of coolant leaking into the engine since the 1995/96 model year? Please see my website for the analysis of the 1999 complaints http://www.missouri.edu/~ryh352/2003/bonne.htm I, of course, want my $5,300 returned from gm. I also think it only fair that the recall extend to 1998 and 1999 bonneville owners with less then 100,000 miles on their car and gm repair those cars free.

Filed Sep 10, 2003 · Engine · 84,000 miles · IN

My car stalls intermittently, usually in town while braking or turning, or merely slowing down. It lurches when cruise control is set at higher speeds like it's trying to die. It has happened at least 10 times (dying) and 5 times (lurching) in the last 3 days. Dealership unable to duplicate more than 1 time and can't figure out what to do next. Have cleaned terminals and replaced crank shaft sensor.

Filed Sep 4, 2003 · Engine · 12,000 miles · PA

The consumer stated the vehicle stalled which made the vehicle difficult to control. *ph the dealer replaced the oxygen sensor, but the problem continued. *scc

Filed Aug 17, 2003 · Engine · 71,100 miles · NY

Brought vehicle in for oil change @ local repair shop. Shop owner states check engine light came on-vehicle stalled. Found plastic intake manifold burned. Entire engine flooded with anti-freeze. Estimated engine repair cost approximately $2100.00.