× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
2001 Ford Expedition XLT 5.4L MIL Lamp on
Posted to Ford Driveability on 2/25/2008 11 Replies

Car came in with Code po171. Cleaned MAF sensor no problems found with it. checked PCV hose for collapsing and for leaks none found. Cleared codes and customer came back a week later with code po171 again. Took a closer look at the o2 sensors and when I run th...

11 Replies Received (View Replies)

  Related Documents & Media  2001 Ford Expedition XLT

 
Message Closed w/Summary

car Vehicle Data

2001 Ford Expedition XLT

VIN 1FMPU16L51
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
Message Closed w/Summary

car Vehicle Data

2001 Ford Expedition XLT

VIN 1FMPU16L51
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

P0171Fuel System Too Lean (Bank 1)