2001 Buick Regal hesitates

2001 BUICK REGAL
40,000 MILES • 6 CYL • FWD • AUTOMATIC
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RUSH50
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i have a supercharger,,,when going 65mph at 2500rpm my car hesitates,,then i have to push the accelerator past that point which is 3000rpm and it goes too fast ,,,it will hit 80mph,,,this happens when under a load going up a hill on the freeway,,please tell me what part to replace,,,we couldnt find a vacuum leak we sprayed with starter fluid on the hoses,,could the tranny need adjustment
Apr 24, 2009 at 7:40 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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