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1996 Mercury Mystique GS 2.5L Misfire, Poor Fuel Economy, MIL Lamp on
every few months this car comes in with cyl's 1-3 (mostly #3) misfiring due to carbon tracking between the spark plug and the spark plug wire boot. I have tried replacing the plugs, wires and coilpack, but after a few months the car returns with the same probl...
FIX posted 11/9/2001
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Related Documents & Media | VIN | 1MELM65LXT |
| Engine | 2.5 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Misfire, Poor Fuel Economy, MIL Lamp On |
| Occurs | Always After a Few Months of Driving |
Trouble Codes
| P0303 | Cylinder 3 Misfire Detected |
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Message Closed w/Summary
Vehicle Data
1996 Mercury Mystique GS
| VIN | 1MELM65LXT |
| Engine | 2.5 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Misfire, Poor Fuel Economy, MIL Lamp On |
| Occurs | Always After a Few Months of Driving |
Trouble Codes
| P0303 | Cylinder 3 Misfire Detected |
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Video