Intake Manifold Gasket May Leak Coolant or Engine Oil on Pontiac Grand Am

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: 117,207 (10,000–316,000)
Engines affected: 2.2L 4 Cylinder, 2.4L 4 Cylinder, 3.1L V6, 3.4L V6, 4 Cylinder, V6
12 model years affected: 1994, 1995, 1996, 1997, more1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
119 people reported this problem
55 people shared problem details
2004 Pontiac Grand Am- 3.4L V653,232
I had the Low Coolant light come on. Took it into the dealer who said I need new Header Gaskets. I am assuming I need Lower Intake Manifold gaskets as well. I've been reading that is a common problem with GM V6 engines as the DexCool coolant degrades the plastic gaskets. This is apparently a known GM problem. There was a class action lawsuit that was settled in 2008 on this issue. However, GM should do a recall on this issue as it is huge. I will never buy another GM car or American car for that matter.
19 people like thisFlag inappropiate
2003 Pontiac Grand Am- 3.4L V6
noticed coolant on gound. kept adding coolant, sometimes twice a day. looked over engine compartment and saw puddle of coolent by manifold. clean area up, started car and found leak. Needs gaskets replaced. I called a repair facility was quoted between $1200.00 to $1800.00 to fix. Has Pontiac acknowledged this problem?
12 people like thisFlag inappropiate
2002 Pontiac Grand Am- 3.4L V6110,000
I have had to replace my intake manifold gasket three times now, three years now. This car has been nothing but trouble since I got it.
10 people like thisFlag inappropiate
2001 Pontiac Grand Am- 3.4L V6125,500
Winter came, heater started blowing cold at idle but warmed when driving till fluid got low.
8 people like thisFlag inappropiate
car was leaking coolant, had to have intake gasket replaced. Leaked coolant again, had to have freezeplug replaced. continued to leak, was told the head gasket was blown. been driving it for about 2 years on blown head gasket.
8 people like thisFlag inappropiate
2000 Pontiac Grand Am- 3.4L V614,523
It keeps not wanting to start and its leaking oil onto my engine, the antifreeze keeps disappearing when i fill it up. and it over heats and shuts off while im driving.
6 people like thisFlag inappropiate
2004 Pontiac Grand Am- 3.4L V6122,000
Intake manifold was leaking coolant, the fix was upwards of $1000. decided to trade the car in instead.
6 people like thisFlag inappropiate
engine started running rough looks like oil is leaking onto spak plugs
5 people like thisFlag inappropiate
1999 Pontiac Grand Am- 3.1L V6117,695
0verheats, leaks antifreeze, cost $860 to repair
5 people like thisFlag inappropiate
1997 Pontiac Grand Am- 2.4L 4 Cylinder107,000
heads up stay away from 2.2 4cylinder engines i have a s10 at 81000 cost 1800.00 for new head /gasket . the mechanic told me the heads are throw away heads /now intake gasket is bad i was told a1000.oo again less than miles / and do it all over / stay away from chevy junk have had 2chevy s both were junk ps i take very good care of my vehicles no car track i owned 5 buicks one i drove for 15 years 73 boat tail. no chevy
1 person likes thisFlag inappropiate
2001 Pontiac Grand Am166,845
It runs hot fast and leaks under the engine
1 person likes thisFlag inappropiate
1996 Pontiac Grand Am- 3.1L V6103,224
leak cooler doing my car overheat and damaged seal and gasket from the engine.
1 person likes thisFlag inappropiate
2004 Pontiac Grand Am- V691,000
Trac off light keeps coming on then the car loses speed. It's running hot all the time and leaking coolant.
2002 Pontiac Grand Am200,000
2001 Pontiac Grand Am- 3.4L V6182,000
My car started running rough and then wouldn't hold antifreeze. The mechanic thought it might be a head gasket issue, but it turned out to be the intake gasket, which is a cheaper fix, but not by much. I can't complain though, I've gotten a lot of miles out of my car.
2005 Pontiac Grand Am- 3.4L V661,000
intake manifld gasket leaking antifreeze…also, ignition shutdown
1999 Pontiac Grand Am- 3.4L V6180,000
Over heats. Water pump brome. Got it replAced.. The over heated more than it did before. Looked online and says I have symptoms of cracked or blown head gasket.. Got bars leak head gasket sealer. It doesn't over heat anymore, but it does still leak coolant. I hate this star. But more money to fix than I paid for!
2002 Pontiac Grand Am- 3.4L V6237,000
I have had problem for quite a while, I will replace and see what comes of it,
2003 Pontiac Grand Am- 3.4L V6120,000
first I noticed my heater stopped working, then I had a problem with overheating it seems to be using a whole lot of antifreeze send my service engine soon light started flashing when I would hit 30 mph. Then after a good test drive I realized I had an oily substance on top of my engine. I'm guessing after reading all of the other comments this is exactly what is wrong with my car.. Very disappointed.
1999 Pontiac Grand Am- 3.1L V670,000
water in oil
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