Pontiac Bonneville Engine Poor Mileage

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2002 Pontiac Bonneville Poor Fuel Economy

2002 PONTIAC BONNEVILLE

The Cars Runs Well But The Fuel Economy Has Dropped 100 Miles Per Tank. I Changed The Fuel Filter, Pcv Valve, Plugs (very Clean Old Ones). I...

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Asked by wbullock

1996 Pontiac Bonneville SE 3.8 Bad Gas Mileage

1996 PONTIAC BONNEVILLE

1996 Pontiac Bonneville Se 3.8 Mileage: 67,000. In The Past Month And A Half, My Mileage Has Gone From Four Hundred And Fifty Miles Per...

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Asked by 2CP-Archives

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Backfire Burning Oil Clatter Compression Coolant In Oil Damaged Gas Hard to Start Hesitate Idle Erratic Idle High Idle Rough Knock Lean Low Power Misfire Noise Not Cranking Over Not Running Oil Leak Overheat Poor Mileage Revs Up Runs Cold Runs Hot Runs Rough Sputter Squeal Stall While Driving Stall at Idle Surge Vacuum Leak Vibration

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