Chevrolet Monte Carlo
Report: Intake Manifold Gaskets May Leak Coolant or Engine Oil
Chevrolet Monte Carlo Problem
Engines Affected: 3.1L V6, 3.4L V6, 3.8L V6, 3.8L V6 Supercharged
Average Mileage: 128,954 mi (48,000 mi - 213,000 mi)
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.
Visitor, 1996 Chevrolet Monte Carlo, 3.1L V6, 120,000 mi
Intake gasket was changed 2 times on this vehicle between 120,000-130,000 miles.
Visitor, 2002 Chevrolet Monte Carlo, 3.8L V6, 80,000 mi
anti freeze leak replaced plenim gasket
Visitor, 1997 Chevrolet Monte Carlo, 3.4L V6, 177,610 mi
bad oil leak
Visitor, 2003 Chevrolet Monte Carlo, 3.4L V6, 182,000 mi
coolant leak, bad intake gaskets
Was leaking coolant - replaced lower intake manifold gasket.
Visitor, 1999 Chevrolet Monte Carlo, 3.1L V6, 96,000 mi
I had this happen at 84,000 miles and again at 96,000. Both times the head gasket had to be replaced. I traded it in and the dealer said the same thing as the garage. Just too much nickle and diming to have it replaced again. I know things wear out, but ouch. Both times were in the winter, when you want heat pumping through the vents, not an overheated, leaking car.
Visitor, 2003 Chevrolet Monte Carlo, 3.4L V6, 90,000 mi
Bought my monte brand new in 2004; my son-in-law told me later I was going to have this problem and I did. Had to have the manifold gasket replaced. Luckily the coolant hadn't destroyed my engine.
02 monte carlo ss the upper intake is leakeing water into the oil about the third time in three years .
Visitor, 1997 Chevrolet Monte Carlo, 3.1L V6, 112,000 mi
oil leaks into coolant system
Visitor, 1997 Chevrolet Monte Carlo, 3.1L V6, 138,000 mi
coolant leaking internal water in oil local expensive to fix was 627.00 and this was the 2nd time