2002 pontiac grand prix idleing high
2 Answers
Goodwrench707 answered 10 years ago
It could could be bad intake manifold gaskets. Get it to a mechanic.
1 people found this helpful.
oil in the water could also be the head gasket or worse. cracked head or block. pressurise the radiator and see where the coolant goes.
1 people found this helpful.