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.
Resources for the Repair and Maintenance of your 2005 Pontiac Grand Prix GTP
2005 Pontiac Grand Prix GTP
2005 Pontiac Grand Prix GTP Problems
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.
Contaminated brake fluid can cause problems in the brake system and it should be flushed every 60,000 miles.
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.
2005 Pontiac Grand Prix GTP Questions and Answers
traction/stability check lights pops on; is this a sencor problem or transmission problem ? can i fix it myself?
Automatic transmission will not work in Drive. Must use manuel tap shifters.
05 grand prix gtp