2003 Pontiac Bonneville Engine cooling Problems

“Plenum intake valve & gasket replaced in april 2003 and again in september 2003. Now engine needs to be replaced. Service dept. Told me they stock these parts due to frequent demand for them. This is my 2nd Pontiac and I am disappointed with the Bonneville. My 2 previous repairs were over $900 and now I may have to replace an engine. I would appreciate any assistance you could provide to rectify this issue. The vehicle is awaiting repair at dean arbour chevrolet in east tawas, mi.”

“The contact owns a 2003 Pontiac Bonneville. The contact stated that while moving the vehicle from its parked location, the contact noticed engine oil leaking on the ground under the vehicle. The contact also stated that the vehicle had been experiencing diminished engine power. The vehicle was not diagnosed or repaired. The VIN was not included in NHTSA campaign number: 15v701000 (engine and engine cooling). The manufacturer was not made aware of the failure. The failure mileage was 75,000. Updated 03/16/16”

“The contact owns a 2003 Pontiac Bonneville. While driving 65 MPH, the engine stalled and all the warning indicator lights illuminated. The vehicle would not restart. The repair shop stated that the failure was caused by a spun bearing and a blown rod. The engine was replaced. The current and failure mileages were 90,000. Updated 03-04-08 the vehicle had a coolant leak from the intake. After the repair was made, the engine blew out a rod.”

“The contact owns a 2003 Pontiac Bonneville. The contact noticed an engine coolant leak at the upper intake manifold throttle body. He took the vehicle to the dealer and they stated that he would have to install a kit in the engine at his expense because the manufacturer stopped assuming financial responsibility in 2005. He was never notified of the alleged defect by the manufacturer. The vehicle has not been repaired. The failure mileage was 18,000 and current mileage was 105,000.”

“The contact owns a 2003 Pontiac Bonneville. The contact stated that she noticed an overpowering fuel odor as the check engine warning light illuminated. The vehicle was taken to a repair facility where the contact was informed that the fuel tank and catalytic converter would need to be replaced. The vehicle was not repaired. The contact called the manufacturer who explained that the vehicle was not included in NHTSA campaign id number: 03v238000 (fuel system, gasoline:storage:tank assembly). The current and failure mileage was approximately 90,000.”