1999 Pontiac Grand Prix GTP Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1999 Pontiac Grand Prix GTP
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1999 Pontiac Grand Prix GTP ProblemsStalling Due to Mass Air Flow or Crankshaft Position Sensor Failure
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.
You may be able to prevent transmission problems by servicing the transmission and inspecting the fluid every 30,000 miles. If the fluid is dark or burned then the transmission system should be completely flushed.
1999 Pontiac Grand Prix GTP QuestionsHow can we get the obd to read? (1 answer)
We have checked our fuses and switched them out. When we check it with our computer it turns on but when we take it to the emissions we can't get it to read.
so i bought my car used and when i turned on the ac it didnt work till i put it on level 3 and now it wont work till i put it on max. whats the reason for this?
We think we are having tranny issues, and noticed that the HUD scrambles up and down when it is shifting into overdrive.