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

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: 159,816 (60,000–270,000)
Engines affected: 5.3L V8, 5.7L V8, Gasoline
6 model years affected: 1995, 1996, 1997, 1998, more1999, 2000
26 people reported this problem
9 people shared problem details
2000 Chevrolet Tahoe- 5.3L V8180,000
our leak wasnt oil or coolant but air. The intake gasket was leaking to the outside when the truck was cold thus messing with its idle in cold say sub 45 degree weather. as soon as the motor warmed up and everything expanded it would seal and no leak=good driving. since we paid to have it replaced, no problems with it since.
1995 Chevrolet Tahoe- 5.7L V8170,000
Coolant is low and leaking out the tailpipe (White smoke ) Oil is OK. Repair is being contemplated. This is the forth time in the last ten years!
Intake manifold gaskets are known to leak engine oil or coolant.
2000 Chevrolet Tahoe- 5.3L V8170,000
leaking exhaust manifold gasket. Motor sounds like a diesel with a sound like value chatter until it warms up at which time sound goes away.
Replaced gaskets, leak still happens
1999 Chevrolet Tahoe- 5.7L V893,028
My gaskets leak on my intake and I've noticed a change in the way the engine sounds, it's only has 95,000. Miles on it and it already sounds like it's knocking so I'm getting Chevy to look at it Friday
1996 Chevrolet Tahoe- 5.7L V870,000
Leaks coolant, over heats, not yet fixed.
I had to replace intake gaskets upper and lower
Loss of heat in winter. Found antifreeze in oil. Trying to find estimate on replacement of intake gaskets.
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