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

Problem Description and Possible Solution

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.

Problem Data
RepairPal Verified
Average mileage: 55,337 (13–150,000)
Engines affected: 4.3L V6, 5.7L V8
7 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996
11 people reported this problem
Viewing 1 - 2 of 2 problem details
Leaking cooling from manifold
Antifreeze come from bolt, that holds down manifold, bad gasket