Intake Manifold Gasket May Leak Coolant or Engine Oil on Chevrolet 1500 Pickup

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: 139,511 (55,000–300,000)
Engines affected: 4.3L V6, 5.0L V8, 5.7L V8, Both Sides, Gasoline
10 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 1998, 1999
84 people reported this problem
52 people shared problem details
whats the difference in a blown head gasket and a blown intake gasket
1998 Chevrolet 1500 Pickup- 5.7L V8146,200
leaking antifreece in oil , havnt fixed yet.
1997 Chevrolet 1500 Pickup- 5.7L V8177,250
anti freeze in oil, changed lower intake gaskets.
Re-call on intake manifold, replaced at 30K miles & again at 60K miles. It is beginning to leak again at 110K miles.
1993 Chevrolet 1500 Pickup- 5.7L V8300,000
coolant in oil wont pressureize..
1998 Chevrolet 1500 Pickup- 5.7L V898,000
leaking plastic gasket why would they us plastic where heat would build and ruin plastic integrety come on chevy
1998 Chevrolet 1500 Pickup- 5.7L V8173,000
intake manifold gasket had to be replaced
1997 Chevrolet 1500 Pickup- 5.7L V8142,000
oil level increasing and pressure dropping
Started smelling antifreeze around the truck, looks like it is pooling up around the base of the intake manifold area ........... My understanding is that the ORANGE DEXCOOL antifreeze is eating up the factory installed intake manifold gaskets. How could GENERAL MOTORS get away with this kind of issue ? The same problem on almost all GM cars and trucks that use DEXCOOL coolant.
1998 Chevrolet 1500 Pickup- 5.7L V8160,000
This is the second time, since I bought the truck new, that I've had to replace the intake manifold gaskets due to coolant leakage. The good news is that Fel-Pro has realized that their manifold gaskets suck and redesigned them. No more plastic with silicone sealing material. Hoping that they fixed the problem that the Chevy engineers created. Maybe they'll come out with a non-plastic distributor next. We can only hope.
1999 Chevrolet 1500 Pickup- 4.3L V667,000
Chevy you suck. Your cars and trucks are crap. Not what they used to be. I think you guys are designing them to fail.
1992 Chevrolet 1500 Pickup- 5.7L V8142,000
leaking at manifold water coolant and passing on to exhaust causing smoke steam
1998 Chevrolet 1500 Pickup- 4.3L V6196,000
Blown intake manifold gasket
It was losing coolant on the back side of the motor driver side gasket gets brittle between head manifold must be bad gasket design. pulled motor apart ordered order new style of gasket put back together replaced spider injector with new style spider injector truck runs good as new
1999 Chevrolet 1500 Pickup- 4.3L V6146,000
leaking antifreeze down back of engine/trans.damaged intake manifold gasket?
1997 Chevrolet 1500 Pickup- 5.0L V872,000
Started using water and knocking.very expensive to fix.
1990 Chevrolet 1500 Pickup- 5.0L V8100,000
truck is leaking coolant from back of motor on top of tran
1996 Chevrolet 1500 Pickup- 5.7L V8226,350
Coolant leaking past he gasket into the oil.
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