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. Running the engine with a coolant/oil mix may result in engine damage. Replacing the intake manifold gasket should correct this issue.
Resources for the Repair and Maintenance of your 1999 Pontiac Grand Prix GTP
1999 Pontiac Grand Prix GTP
1999 Pontiac Grand Prix GTP Problems
The intake manifold gasket may develop external engine oil leak. The manifold gasket will need to be replaced to correct this issue. RepairPal cannot confirm a recall for this concern on these models.
The mass air flow or crankshaft position sensor may fail causing the engine to intermittently stall. It may be necessary for the engine to cool down before it will restart.
The serpentine belt tensioner pulley may wear out. Our technicians tell us that in order to get a new pulley from General Motors you must purchase a complete belt tensioner assembly.
The fuel pump may fail causing engine to stall and not restart.
1999 Pontiac Grand Prix GTP Questions and Answers
is the differential assembly part of the transmission?
car stalled several times in 3 months like it ran out of gas would crank but not start-but after 5 minutes started- now wont turn over -not even 1 click--radio lights do work
praise the Lord! my s...
My driver information center is not lighting up at all and the heads up display is not working, it moves up and down but no numbers are displayed. All fuses are good any ideas of what else it coul...
How much will it cost to have the head gasket valve cover gasket and supercharger gaskets and fluids replaces in my 99 gtp