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1997 Ford Expedition XLT 5.4L Misfire, MIL Lamp on
Posted to Ford Driveability on 10/23/2004 21 Replies

i have ford expedition has codes p01131,p0171,[...] surge and [...] far i check for vacuum leak.i could not find any.i know smoke macine is the best way check for vacuum leak. unfortunately i dont [...] fitting at pressure regulator is [...] vacuum hose tight ...

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  Related Documents & Media  1997 Ford Expedition XLT

 
Message Closed w/FIX

car Vehicle Data

1997 Ford Expedition XLT

VIN IFMFU18L6V
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0172Fuel System Too Rich (Bank 1)
P1131Electric Vacuum Pump System Related PGM-FI Sensor Signal Malfunction
Message Closed w/FIX

car Vehicle Data

1997 Ford Expedition XLT

VIN IFMFU18L6V
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0172Fuel System Too Rich (Bank 1)
P1131Electric Vacuum Pump System Related PGM-FI Sensor Signal Malfunction