1988 Buick Regal rough idling/running

1988 BUICK REGAL
165,000 MILES • 6 CYL • FWD • AUTOMATIC
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JGFNCF
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When first start car,it sounds rough,and runs rough till you get up to highway speeds then levels off and runs good,then you come to a stoplight,and it runs rough again,I thought,maybe gotten water in gas so put in 2 bottles of "Heat" still didnt run any better.I dont have alot of money to try this and that but welcome any suggestions.
Mar 17, 2009 at 6:07 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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