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1991 Buick Century Custom 3.3L Poor Idle Quality, engine races
Car runs great, most times, but sometimes engine races at about 1600 to 2200 rpm. When it does race, IAC readings is 0, throttle lever and cables are free. You can drive highway, city for 1 hour and engine still races. Shut engine off, restart, still same. But...
FIX posted 9/13/2003
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Related Documents & Media | VIN | 1G4AH51N4M |
| Engine | 3.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / MPFI |
| Emissions | US Fed emissions |
| Symptoms | Poor Idle Quality, Engine Races |
| Occurs | Intermittently |
| Misc. | 4 Door |
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Vehicle Data
1991 Buick Century Custom
| VIN | 1G4AH51N4M |
| Engine | 3.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / MPFI |
| Emissions | US Fed emissions |
| Symptoms | Poor Idle Quality, Engine Races |
| Occurs | Intermittently |
| Misc. | 4 Door |
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