Pontiac Grand Prix Problem Report
Pontiac Grand Prix Intake Manifold Gasket May Leak Coolant or Engine Oil
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.
Oil found mixed into coolant resivour - Visitor
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. - p_fultz
The coolant is leaking in to the engine,the intake manifold gasket is being replaced to correct. - Visitor
Ruined my cat, had both img's replaced. Common issue with this car. - Visitor
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 - Visitor
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? - hotrodgirl
very common problem with these vehicles. GM had a class action suit against them and i was not informed of the suit until it was too late. i should have been reimbursed for the cost of replacing the manifold gaskets but was never notified. - Visitor
Leak from intake under the thermostat housing - Visitor
Had this problem from the get go.
Took it into the dealer for a ticking noise under the hood... they sent me out of the shop making me look like a damn fool that the noise is normal & anything worse is in my head (cuz I'm a girl?)
Smoke coming out of tailpipe... no matter where I took it they made it sound like a big job to do & they can do it when they are less busy which they rarely are.
So my dad (a smart guy but an asshole) said it is a simple & quick repair that he'll do when I change the oil next time... well that is not going to happen, I rather pay someone to fix it than to have him do it. Now I will go to the shop & tell them what to change & will update this post accordingly - Visitor
car miss-fires up until you get it above 2000 rpm but doesnt miss fire if its been on for awhile replaced the head gaskets intake gaskets all of them it fixxed the problem right up - Visitor
My car has had a head gasket change, plenum cover 2, intake 2 and exhaust gaskets changed. Yet I am still pouring white smoke and smelling like coolant. I am getting really frustrated. What is wrong with these cars!!!!!! - Visitor
Intake leaked oil and coolant both, had gaskets replaced. - Visitor
im sure I have a blown head gasket a lot of white smoke from exhaust and car overheats get reduced engine power a lot have not fixed it - Visitor
replace intake seals & fuel injector seals $1200 - Visitor
Not fixed yet as I might try to get rid of the problem
Started noticing a antifreeze odor and sure enough it was leaking out of a couple areas. One garage will fix ithe leak but says I need a new intake manifold as well. Not going to that shop if I get it done at all. - Visitor
The one plactic elbow going into the manifold from the water pump is leaking
0 - Visitor
It seems that I get oil in my coolant. It got better after they replaced the front gasket, do to factory recall, but seem to be leaking again. - Visitor
not leaking in the oil just external coolant leak not repaired yet but thinking about an intake sealant in the rad. - rberry2221
Air in cooling system low coolent level, coolent leaks, low heat - Visitor
Head gasket leak, and intake manifold also leaking. - Visitor
The intake manifold gasket may develop external engine oil leak. The manifold gasket will need...
Was driving on the freeway then my car suddenly turned off. I had it towed home. Checked the oi...
the car is leaking coolant and it appears to have water in the oil i see water leaking around t...
I bought this car new in 2002. It has 154,000 miles on it. I have always ran 10-30 synthetic...
We have been told the car has sludge and is leaking oil, slowly. how do we fix this issue