The intake manifold gasket can develop external engine oil or coolant leaks. In some cases the failed gasket will leak coolant internally. The manifold gasket will need to be replaced to correct this issue.
Average mileage: 105,963 (6,000–260,000)
Engines affected: 3.4L V6, 3.5L V6, 3.8L V6, 3.9L V6
110 people reported this problem