1992 Buick Century 92 buick backfire, hesitation, stumbling

1992 BUICK CENTURY
120,984 MILES • 3.3L • V6 • FWD • AUTOMATIC
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DIYBOB
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  • 1 POST
When starting out the car will backfire, hesitate, stumble, then feels like the car is flooded, if I put the pedal to the floor it will take off after backfiring srmbling and ETC. There is no check engine light. It's not as severe in the mornings but gets worse. I have changed the fuel filter, cleaned the MAF and throttlebody, just seems to get worse. If I floor the pedal while in Park it revs normal.
Sep 17, 2014 at 6:31 PM
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JACOBANDNICKOLAS
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Even though there is no check engine light on, have you checked for codes? The OBD1 systems sometimes don't set the light.

Also, when was the last tune up? Have you checked fuel pump pressure?
Sep 17, 2014 at 8:12 PM