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Problems for specific Pontiac GTO years:

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Most reported Pontiac GTO problems

 

Verified for the Pontiac GTO

A loose or worn gas cap or a faulty catalytic converter are two common items which can cause Check Engine Light to illuminate.

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Verified for the Pontiac GTO

A coolant leak may develop from the water pump. This can result in an engine overheating condition. A leaking water pump will require replacement.

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Verified for the Pontiac GTO

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.

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Verified for the Pontiac GTO

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.

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