Pontiac GTO Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Pontiac GTO
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Pontiac GTO ProblemsCoolant Leak & Engine Overheating
A coolant leak may develop from the water pump. This can result in an engine overheating condition. A leaking water pump will require replacement.
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.
Pontiac GTO QuestionsMy Pontiac gto is leaking antifreeze but only when I shut it off??? (1 answer)
I believe it could be the overflow tank due to the fact that it no where else has moisture coming from it and I've seen it before when I put to much coolant in it. However I'm not sure any suggestions??
MY QUESTION IS WHERE IS THE SECONDARY AIR INJECTION VACUUM CHECK VALVE LOCATED ON MY 2006 PONTIAC GTO AND HOW MANY DO I NEED? ALSO IS IT EASY TO INSTALL/REPLACE? THANK YOU...