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1990 Pontiac Grand Prix LE 3.1L Misfire, chuggle-converter
50 mph, light throttle acceleration, overdrive and lock-up driving up a slight incline,(enough to 'lug'the engine down) at 45 mph a violent'miss-fire' or converter 'slip' is felt, similar to a chain and sprocket jumping on a motorcycle or atv. once the spe...
FIX posted 4/25/2000
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| VIN | 1G2WJ54TOL |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | FI / pfi |
| Emissions | fed |
| Symptoms | Misfire, Chuggle-Converter |
| Occurs | Under Load, Overdrive and Lockup |
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Vehicle Data
1990 Pontiac Grand Prix LE
| VIN | 1G2WJ54TOL |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | FI / pfi |
| Emissions | fed |
| Symptoms | Misfire, Chuggle-Converter |
| Occurs | Under Load, Overdrive and Lockup |
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