2003 pontiac grand prix supercharged


Asked by Joe_butler03 Feb 27, 2020 at 08:11 AM about the 2003 Pontiac Grand Prix GTP

Question type: Maintenance & Repair

Hi, guys, I have a 2003 Pontiac Grand Prix supercharged 3800 and I had
noticed that it is smoking from only around the exhaust manifolds and leaking
oil from above the valve covers and smoking from both sides of the engine. I
have replaced the intake manifold gaskets and the valve cover gaskets.

3 Answers


This sort of leakage was a problem with these engines. Mine was recalled twice by the factory to address the issue. Call the dealership with your VIN and see if there is any outstanding recall work listed for your car. If there is they will repair it for free. If not, and if its leaking from those gaskets, your only option is to replace them again. Maybe try a different brand, or better grade of gasket to see if that helps.


Thank you for the reply I used Fel-Pro gaskets and the leak was not coming from the valve cover gaskets it's coming from lower down around the exhaust manifold I'm thinking it possibly could be a head gasket


That's quite possible. Is there any sign of oil in the coolant or coolant in the oil? Not that there always is, it could be leaking to the outside of the engine. If there's no compression loss and if the leak is minor enough it may be something you can just leave alone and put up with. Especially if the car is near the end of its life.

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