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2001 Ford F-250 Super Duty Lariat 5.4L Poor Idle Quality, Misfire, MIL Lamp on
This 5.4 has a strange problem, It runs great but intermittently it will at idle began to lose cyl #1 through #4, Cylinder contribution will show 25-35% loss and will idle very poorly, Then will clear up and run great, idle in shop for 10 minutes and all the s...
FIX posted 4/5/2013
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15 Replies Received
15 Replies Received
Related Documents & Media | VIN | 1FTNX21L81 |
| Engine | 5.4 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Misfire, MIL Lamp On |
| Occurs | Idle, Intermittently |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0172 | Fuel System Too Rich (Bank 1) |
| P1131 | Electric Vacuum Pump System Related PGM-FI Sensor Signal Malfunction |
| P1132 | Glow Plug Module Internal Fault |
Message Closed w/FIX
Vehicle Data
2001 Ford F-250 Super Duty Lariat
| VIN | 1FTNX21L81 |
| Engine | 5.4 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Misfire, MIL Lamp On |
| Occurs | Idle, Intermittently |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0172 | Fuel System Too Rich (Bank 1) |
| P1131 | Electric Vacuum Pump System Related PGM-FI Sensor Signal Malfunction |
| P1132 | Glow Plug Module Internal Fault |
Video