A loose or worn gas cap or a faulty catalytic converter are two common items which can cause Check Engine Light to illuminate.
Resources for the Repair and Maintenance of your 2005 Pontiac GTO
2005 Pontiac GTO
2005 Pontiac GTO Problems
A dirty throttle body may cause a lower than normal idle and possible stalling condition. Performing a throttle body service will commonly correct this concern.
One or both secondary air injection check valves may become restricted causing poor air flow resulting in illumination of the Check Engine Light. It is often recommend to replace both check valves even if a fault code is set for only one bank of cylinders. Replacing only one valve may result in a return trip to the repair shop.
The spark plugs should be replaced every 100,000 miles. Our technicians recommend replacing the spark plug wires also at this time.
Extended life coolant may become contaminated and require cooling system service before the recommended 100,000 miles.
2005 Pontiac GTO Questions and Answers
Car temp gauge reads over heating when electric fans kick on no signs of water leak or actual over heating symptoms seems to come and go and the radiator never boils over or shows signs of over hea...
why the light track off come on when i driving
i am quite concerned about fuel filter service requirements.i'm aware it is in the tank,but is it self cleaning and should it be changed before fuel pump failure
i have replaced the thermostat and it worked fine for a month or so than it overheated again replaced thermostat again cooling fan came on it was fine and 2 days later its overheating again the coo...
I replaced a thermostat about 2 months ago after my 2005 gto overheated i just had to replace it again the other day , but this time it wasnt the problem. when my heat is all the way up it still bl...