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1999 Ford Expedition XLT 4.6L Poor Idle Quality, MIL Lamp on
Hello all. This vehicle came in with a cel on and misfire code. Foiund failed plug wires. Replaced plugs wires fuel and air filter. Test drove runs fine. Returned vehicle to customer. 500 miles later vehicle comes in with po171 po 174 code. Check maf sensor wa...
FIX posted 2/19/2009
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Message Closed w/FIX
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Related Documents & Media | VIN | 1FMRU1868X |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, MIL Lamp On |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
Message Closed w/FIX
Vehicle Data
1999 Ford Expedition XLT
| VIN | 1FMRU1868X |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, MIL Lamp On |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
Video