1998 Pontiac Bonneville: hesitation when accelerating

Filed Jul 21, 2011 · Engine · 80,433 miles · IN

Tl* the contact owns a 1998 pontiac bonneville. The contact stated that while driving approximately 20 MPH the vehicle suddenly stalled. The contact attempted to restart the vehicle, but it hesitated to start. The vehicle was towed to an independent mechanic, who stated that the plastic gasket from the intake manifold failed and caused engine coolant to leak into the engine. The manufacturer was made aware of the failure and advised the contact to take the vehicle to an authorized dealer for diagnostics.the vehicle was towed to the dealer where the technicians replaced the intake manifold and the intake manifold gasket. After the repairs, the contact heard a knocking noise coming from the engine. The vehicle was towed back to the dealer for diagnostics, but was not repaired a second time. The approximate failure mileage was 80,433.

Filed Aug 10, 2006 · Engine · 84,000 miles · ME

Dt*: the contact stated while the vehicle was stopped at an idle, the engine rpms elevated, and the oil gauge indicated low pressure, followed by engine hesitation. The vehicle was inspected by a dealer who determined no oil leak was present, but a plug wire to the engine cylinder needed to be replaced. The problem persisted after the repairs were performed. The manufacturer was contacted.

Filed Jul 26, 2006 · Engine · MS

Dt*: the contact stated, there was an intermittent problem starting the vehicle, a severe hesitation when accelerating from a stop, as well as backfiring of the engine. An independent service mechanic discovered low fluid levels in the radiator, wet and rusted spark plugs, cracked head gaskets and the piston had torn through the oil pan. The manufacturer the recalled (04v090000) item was replaced in july of 2004 by the previous owner of the vehicle and the recall was closed out. The vehicle was taken to the dealer service mechanic for computer diagnostics.

Filed Nov 3, 2003 · Engine, Transmission · KY

Vehicle's warning signal starts up and the vehicle hesitates or stalls out while driving.*mr the intake manifold was also damaged causing the vehicle to smoke and over heat.

Filed Apr 8, 2002 · Engine · TN

While driving 10-15 MPH, engine was hesitating. Consumer noticed a burning smell. Dealer determined that plastic intake manifold had a hole and was leaking fluid onto engine. Engine had to be replaced. *ak