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International Automotive Technicians Network
1994 Ford Explorer XL 4.0L Excessive Emissions, Poor Fuel Economy
Posted to Ford Driveability on 9/17/2003 8 Replies

Hello fellow techs,

This 4.0 has a very intermitant problem which only has occurred on long trips. Ok, he is towing a light trailer w/a 4 wheeler at 70 mph +- for an hour. Only has occur after extended driving. Engine runs rough and lacks power and he notices...

8 Replies Received (View Replies)

  Related Documents & Media  1994 Ford Explorer XL

 
Message Closed w/Summary

car Vehicle Data

1994 Ford Explorer XL

VIN 1FMCU34XXR
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / PFE
SymptomsExcessive Emissions, Poor Fuel Economy
OccursHot, Under Load, Cruise, Intermittently

Trouble Codes

172lean bank 1
173rich bank 1
176lean bank 2
177rich bank 2
181rich adaptive limit at part throttle reached B1
189rich adaptive limit at part throttle reached B2
Message Closed w/Summary

car Vehicle Data

1994 Ford Explorer XL

VIN 1FMCU34XXR
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / PFE
SymptomsExcessive Emissions, Poor Fuel Economy
OccursHot, Under Load, Cruise, Intermittently

Trouble Codes

172lean bank 1
173rich bank 1
176lean bank 2
177rich bank 2
181rich adaptive limit at part throttle reached B1
189rich adaptive limit at part throttle reached B2