Having problems with your 2004 Pontiac Grand Am ?

2004 pontiac grand am idle

\015 Idles up and down from 600 to 900 RPMs, when you put in reverse or drive the tranny knocks very hard. Not a mass air flow sensor, checked everything for vacuum leak, not found, unbolted catalytic converter didn't change.\015 Posted / edited by AnonymousUser on : 06-12-2021

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Repair Help & Product Troubleshooting for 2004 Pontiac Grand Am

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