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1991 Mercury Sable GS 3.0L Excessive Emissions, Poor Idle Quality
This engine has a steady misfire from cyl#1 at idle. Italso has high HC only at idle. It cleans up and runssmoothly off Idle. Cylinder # 1 spark plug looks wet butnot with carbon it looks almost like a thin coating of [...] porcelin is still white.#1 also show...
FIX posted 4/20/1998
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| VIN | 1MECM55U0M |
| Engine | 3.0 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / efi |
| Emissions | obd1 |
| Symptoms | Excessive Emissions, Poor Idle Quality |
| Occurs | Always |
| Misc. | Wagon |
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Vehicle Data
1991 Mercury Sable GS
| VIN | 1MECM55U0M |
| Engine | 3.0 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / efi |
| Emissions | obd1 |
| Symptoms | Excessive Emissions, Poor Idle Quality |
| Occurs | Always |
| Misc. | Wagon |
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