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.
Intake Manifold Gasket May Leak Coolant or Engine Oilon Pontiac Firebird
Average mileage : 142,660 (87,000–243,900)
Engines Affected: 3.8L V6, 5.7L V8, V8
10 people reported this problem
5 people shared problem details
1997 Pontiac Firebird- 3.8L V699,000Visitor
Almost everyone I know with the GM 3.8 has had this intake manifold gasket fail. I dont know why there are only 7 reports here. There is a mechanic in Portland that does nothing but these repairs all day long for used car dealers
2001 Pontiac Firebird- 3.8L V6243,900Visitor
Oil in the radiator.
1997 Pontiac Firebird- 3.8L V687,000Visitor
cost me about $375 to get it fixed.
1993 Pontiac Firebird- 5.7L V890,400Visitor
Intake leaking oil. Dripped on distributor so I had to replace it as well. Lasted 20 years so not bad
1994 Pontiac Firebird- V8193,000Visitor
I have a manifold leak
The intake manifold gasket may develop external engine oil leak. The manifold gasket will need...
I am thinking about buying a 1994 Firbird Formula from my buddy. I noticed it has got an oil le...
The oil leak was coming from underneath the oil pan and under the passenger side of the engine....
i'mhaving a terrible time. my car is sucking in way to much air. first it would start then sta...
What is the cost for replacing intake manifold gaskets