RUNNING TERRIBLE

1990 Pontiac Grand Am

Tiny

babygirl2800

June, 24, 2014 AT 3:09 AM

Its running terrible and when you hit the gas it will backfire I changed the quals and everything thats not it I have no idea what it could be got any suggestions

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1 Answer

Tiny

hmac300

June, 24, 2014 AT 6:00 AM

Scan for codes and check fuel pressure with a gauge first autoparts rent the gauge. Then check compression and look for a vacuum leak

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