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.
Average mileage: 143,364 (51,000–370,000)
Engines affected: 4.3L V6, 5.0L V8, 5.7L V8, Both Sides, Gasoline
97 people reported this problem
whats the difference in a blown head gasket and a blown intake gasket
WATER POURS OUT THE BACK OF THE ENGINE WITHOUT IT RUNNING OR BEING WARM . NO PREASURE IN THE BLOCK AT ALL . DONT KNOW WHAT TO FIX ????? ANY IDEAS ???
leaking antifreece in oil , havnt fixed yet.
leaking at manifold water coolant and passing on to exhaust causing smoke steam
Oil getting in the cooling system but no water in the oil
anti freeze in oil, changed lower intake gaskets.
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.
Re-call on intake manifold, replaced at 30K miles & again at 60K miles. It is beginning to leak again at 110K miles.
coolant in oil wont pressureize..
Blown intake manifold gasket
leaking plastic gasket why would they us plastic where heat would build and ruin plastic integrety come on chevy
oil level increasing and pressure dropping
intake manifold gasket had to be replaced
coolant leaking from intake manifold
Started using water and knocking.very expensive to fix.
Chevy you suck. Your cars and trucks are crap. Not what they used to be. I think you guys are designing them to fail.
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.
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
Coolant leaking past he gasket into the oil.
Intake gasket leaked externally for months then internally. Got new intake gasket and fixed it