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2003 Ford Expedition XLT 4.6L Poor Idle Quality, Misfire, MIL Lamp on
Posted to Ford Driveability on 10/12/2006 7 Replies

This is my first help request, if anyone needs any more info I will try to supply it. The first tech gave up and now its my turn. The truck runs fine down the road. The problem is only noticable at idle (which is rough/but stable). The mil light is/was on with...

7 Replies Received (View Replies)

  Related Documents & Media  2003 Ford Expedition XLT

 
Message Closed w/Summary

car Vehicle Data

2003 Ford Expedition XLT

VIN 1FMRU15W13
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursIdle
Misc.Prod. Date 02-03

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0306Cylinder 6 Misfire Detected
Message Closed w/Summary

car Vehicle Data

2003 Ford Expedition XLT

VIN 1FMRU15W13
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursIdle
Misc.Prod. Date 02-03

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0306Cylinder 6 Misfire Detected