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1999 Buick Century Custom 3.1L Poor Idle Quality, Hesitation, Misfire
The car idles poorly at cold start for about 30 seconds and then clears up. It seems to surge like a vacuum leak but we have been unable to find any leaks with a smoke machine. The vacuum gauge shows 18 inches of vacuum at idle when its not having the issue. I...
FIX posted 6/14/2011
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Message Closed w/FIX
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25 Replies Received
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Related Documents & Media | VIN | 2G4WS52M8X |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / mpi |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Hesitation, Misfire |
| Occurs | Cold |
Message Closed w/FIX
Vehicle Data
1999 Buick Century Custom
| VIN | 2G4WS52M8X |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / mpi |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Hesitation, Misfire |
| Occurs | Cold |
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