Intake Manifold Gasket May Leak Coolant or Engine Oil on Chevrolet Express 2500

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. Running the engine with a coolant/oil mix may result in engine damage. Replacing the intake manifold gasket should correct this issue.

RepairPal Verified
Average mileage: 95,444 (25,000–195,000)
Engines affected: 5.0L V8, 5.7L V8, Gasoline
7 model years affected: 1996, 1997, 1998, 1999, more2000, 2001, 2002
18 people reported this problem
Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
Viewing 1 - 9 of 9 problem details
2000 Chevrolet Express 2500 - 5.0L V8 31,000 mi,
was leaking antifreeze thought it was the water pump had it replaced still leaking antifreeze antifreeze in the oil manifold gasket leaking had to replace see if it if it works
2002 Chevrolet Express 2500 - 5.7L V8 150,000 mi,
Coolant is leaking from the intake manifold, I am not sure if it's the gasket or I'd it is cracked.
2002 Chevrolet Express 2500 - 5.0L V8 68,000 mi,
Smelled Antifreeze and had it checked out to find the Intake Manifold was leaking Estimate Cost $940.00 and I am on SS. THANKS GM
1996 Chevrolet Express 2500 - 5.7L V8 86,000 mi,
Coolant leak found when shock absorbers were being changed.
Oil leak under the engine close to the oil filter
2000 Chevrolet Express 2500 - 5.0L V8 25,000 mi,
Bought 2000 2500 Chevy Express at 23000 miles after it sat for 10 years second time I am replacing the lower intake manifold gasket
2000 Chevrolet Express 2500 - 5.7L V8 103,000 mi,
Intake manifold gasket leaks. Bolts, after time, were not torqued properly. Tightening didn't help.
2001 Chevrolet Express 2500 - 5.0L V8 101,000 mi,
Antifreeze leaking from the top of the engine on the passenger side, intake manifold gasket was worn out, replaced and changed oil.
Engine was misfiring real bad sprayed starting fluid around intake and could hear the difference,replaced gasket