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.

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Average mileage: 176,285 (70,000–285,000)
Engines affected: 2.8L V6, 4.3L V6
10 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 2000, 2001, 2002, 2003
19 people reported this problem
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problem details
1995 Chevrolet S10 - 4.3L V6 278,000 mi,
water in oil coming from LIM. replaced all gaskets from the heads up. also new water pump, coolant, thermostat and radiator.
1991 Chevrolet S10 - 2.8L V6 278,000 mi,
leaks oil at rear of engine
Had the intake manifold gaskets replace. Also replaced the coolant and oil.
2000 Chevrolet S10 - 4.3L V6 103,000 mi,
Currently in shop
Leaking antifreeze-Right side gasket defective-Replaced
2001 Chevrolet S10 - 4.3L V6 75,000 mi,
second occurrence at 153k