Intake Manifold Gaskets Can Develop Engine Oil Leaks on Pontiac Bonneville
Problem overview
The intake manifold gaskets can develop external engine oil or coolant leaks. The intake manifold will need to be removed and the gaskets replaced to correct this issue. In some cases the plastic intake manifold my be damaged requiring replacement.
83 people reported this problem
35 commentsPontiac Bonneville vehicles with this problem
16 model years affected
Average mileage: 109,939 miles
(34,000 - 223,000)
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