Pontiac Grand Prix
Report: Intake Manifold Gaskets May Leak Coolant or Engine Oil
Pontiac Grand Prix Problem
Engines Affected: 3.1L V6, 3.4L V6, 3.8L V6
Average Mileage: 120,490 mi (60,000 mi - 263,000 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.
Well, when i started my car i saw nothing but white smoke billowing from the tail pipe. Now car the rides extremely rough, i had it towed to a shop and they told me that i needed another engine, but after reading about how common this problem is i think i need a second opinion.
Visitor, 2003 Pontiac Grand Prix, 99,500 mi
Oil found mixed into coolant resivour
Visitor, 2006 Pontiac Grand Prix, 120,231 mi
The coolant is leaking in to the engine,the intake manifold gasket is being replaced to correct.
This has been an awesome car with regular maintenance and normal wear/tear replacement parts but after replacing the AC condenser, it will run hot (210 degrees) and the TEMP light will come on. Fans both run, radiator is full. Runs fine in the cooler months and in the hot months (100+ this year)without the AC on. Noticed some oil residue around the opening of the radiator but no water in the oil, no white exhaust. Otherwise still squalls the tires and hugs the corners great. Any suggestions?
Visitor, 2002 Pontiac Grand Prix, 3.8L V6, 95,000 mi
Ruined my cat, had both img's replaced. Common issue with this car.
Visitor, 2006 Pontiac Grand Prix, 3.8L V6, 141,000 mi
my son checked the oil and it was very low.we checked for leaks everywere.but none to be found.and it dont smoke. noticed milky color in oil cap and radiator cap.most likley head gasket.also has a small skip but thats most likly the water in the oil.also head lights want work on dim.But over all great car that will fly. r ROLL TIDE
Seems I have a leak of coolant into the engine oil. Recommended repairs were Valve cover gasket @ 149.19 for parts and 312.00 for labor (total $461.19) Also Oil pan gasket set @ 119.82 for parts and 436.80 for labor (total $556.62) Also Intake Manifold Gasket @ 153.37 for parts and 436.80 for labor (total $590.17). I would like to do all this repair on my own if possible. total shop cost is $1683.58. Id like to save that money, any recommendations welcomed.
Visitor, 2002 Pontiac Grand Prix, 3.1L V6, 80,000 mi
The car is still running well in spite of this issue, but for how long I don't know. The a/c continues to work well but I'm still getting rid of this car because in addition to this issue, it's got a host of other issues I'm not willing to fix.
Visitor, 2002 Pontiac Grand Prix, 3.1L V6, 100,000 mi
I had to constantly keep adding coolant. These leaks are hard to see. It's freaky - you see lots of coolant on the ground but it takes a lot to see where it's coming from. I had to have the upper and lower intake gaskets replaced and it was pricey. About $900.
Visitor, 1998 Pontiac Grand Prix, 3.8L V6, 117,000 mi
Intake fractured and is leaking coolant externally, daughter has been driving the car for over a year that way, just adding coolant as needed, now problem is getting worse at 137K and I'll be spending next weekend fixing the dang thing. 15 years and 137K miles and it finally broke down, sorry guys, thats just the price of owning a car. I ain't complaining at all...