1997 Ford Expedition XLT 5.4L Poor Idle Quality, Hesitation, Stall, MIL Lamp on
The vehicle almost stalls and runs rough,hesitates. Chech engine light is on. Checked fuel filter,it is o.k. Cleaned MAF and it reads o.k. Both upstream and downstream O2 sensors reads 0mV. Does anyone have any help?
FIX posted 10/11/2004
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Message Closed w/FIX
Vehicle Data1997 Ford Expedition XLT
Trouble Codes
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Message Closed w/FIX
Vehicle Data
1997 Ford Expedition XLT
VIN | 1FMFU18T9V |
Engine | 5.4 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, Hesitation, Stall, MIL Lamp On |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |
P0174 | Fuel System Too Lean (Bank 2) |