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.
Car Problem Reports
Chevrolet 2500 Pickup Intake Manifold Gaskets May Leak Coolant or Engine Oil
Chevrolet 2500 Pickup Problem
Engines Affected: 5.0L V8, 5.7L V8, 7.4L V8, Gasoline
Average Mileage: 116,000 mi (45,000 mi - 210,000 mi)
Visitor, 1993 Chevrolet 2500 Pickup, 5.0L V8, 180,000 mi
My intake gasket was leaking also. I simply put Bars Leak in and it completely stopped. Amazing. I also want to add, that i have owned many trucks, newer ones, and I would not trade this good old truck for any of them. This is one tough solid truck
Visitor, 2000 Chevrolet 2500 Pickup, 5.7L V8, 100,000 mi
leaking coolant front corners
Visitor, 1999 Chevrolet 2500 Pickup, 7.4L V8, 75,000 mi
Mine leaked coolant to the out side
Replaced the intake gaskets and they have lasted 24,000 miles and three years. Now its leaking again
Visitor, 1999 Chevrolet 2500 Pickup, 5.7L V8, 98,000 mi
intake manifold cracked leaks water
Visitor, 1996 Chevrolet 2500 Pickup, 5.7L V8, 45,000 mi
I bought the truck used and it was leaking oil at the time. The leak slowly (over 10 years) became worse. To date, I have not fixed leak.
Visitor, 1997 Chevrolet 2500 Pickup, 7.4L V8, 58,000 mi
Leaking coolant on ouside of engine. Replaced intake manifold gaskets.
My intake gasket leaks coolant from the front of the intake. I resealed it and 10,000 miles later it developed again. Slower then before, a can of radiator stop leak fixed it though!