Intake Manifold Gasket May Leak Coolant or Engine Oil on Chevrolet S10

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.

RepairPal Verified
Average mileage: 183,500 (75,000–278,000)
Engines affected: 2.8L V6, 4.3L V6
9 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 2000, 2001, 2003
13 people reported this problem
5 people shared problem details
1991 Chevrolet S10- 2.8L V6278,000
leaks oil at rear of engine
1995 Chevrolet S10- 4.3L V6278,000
water in oil coming from LIM. replaced all gaskets from the heads up. also new water pump, coolant, thermostat and radiator.
2000 Chevrolet S10- 4.3L V6103,000
Currently in shop
2003 Chevrolet S10- 4.3L V6
Leaking antifreeze-Right side gasket defective-Replaced
second occurrence at 153k
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