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 S10 Blazer
Average mileage: 193,535 (150,000–263,678)
10 people reported this problem
3 people shared problem details
just noticed green running a little bit in front of intake.
1994 Chevrolet S10 Blazer194,000Visitor
replaced intake gaskets. very labor intensive
1993 Chevrolet S10 Blazer263,678Visitor
1993 S10 Blazer 4.3 "W" 4x4. Coolant mixing with my oil. Coolant/oil under plenum around spider. Truck starts right up but has hardly any acceleration. Milky gunk clogged the pcv valve and where you put oil into the motor there was milky gunk.
why is it so much to change a intake manifold gasket? The garage i go to wants $500 to do it.
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