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1991 Pontiac Grand Prix SE 3.1L Misfire
Car has an almost dead miss on #1 at idle. Checked spark, compression, all plug wires, coil, and tried noid light on #1 injector harness - all checked OK. Checked for vacuum leak, which I considered most likely from customers complaint, repaired one at IAC mot...
FIX posted 5/26/2000
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Message Closed w/FIX
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| VIN | 1G2WJ14T3M |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | FI |
| Symptoms | Misfire |
| Occurs | Idle |
Message Closed w/FIX
Vehicle Data
1991 Pontiac Grand Prix SE
| VIN | 1G2WJ14T3M |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | FI |
| Symptoms | Misfire |
| Occurs | Idle |
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