The intake manifold gasket may develop and external engine oil or coolant leak. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. Our technicians tell us that operating the engine with a coolant/oil mix can result in internal engine damage. Replacing the intake manifold gasket should correct these leaks.
Intake Manifold Gasket May Leak Coolant or Engine Oil on Chevrolet Astro
Average mileage: 109,000 (98,000–120,000)
Engine affected: 4.3L V6
8 people reported this problem
1 person shared problem details
2000 Chevrolet Astro- 4.3L V698,000Visitor
Antifreeze in oil
service engine light came on
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