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2005 Ford F-150 Lariat 5.4L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on
This truck has a slightly rough idle,but runs great UNLESS you go on a long hard accel then misfire occurs and oxygen sensors go full lean bank 1 & [...] pressure stays at [...],fuel pump duty cycle goes no higher than 29% and scanner fuel pressure reading is ...
FIX posted 6/25/2010
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Message Closed w/FIX
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11 Replies Received
11 Replies Received
Related Documents & Media | VIN | 1FTPX14505 |
| Engine | 5.4 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / mpfi |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Hesitation, Misfire, MIL Lamp On |
| Occurs | Hot, on Accel, Intermittently |
Trouble Codes
| P0301 | Cylinder 1 Misfire Detected |
Message Closed w/FIX
Vehicle Data
2005 Ford F-150 Lariat
| VIN | 1FTPX14505 |
| Engine | 5.4 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / mpfi |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Hesitation, Misfire, MIL Lamp On |
| Occurs | Hot, on Accel, Intermittently |
Trouble Codes
| P0301 | Cylinder 1 Misfire Detected |
Video