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2003 Lincoln Navigator 5.4L Poor Idle Quality, Misfire, MIL Lamp on
Posted to Ford Driveability on 8/9/2009 12 Replies

HI Y'ALL!! THis truck is a real headache!! Original complaint was misfire on accel! Found misfire events on mode 6 cyl #3 had about 1800 misfires in memory! OK replaced all spark plugs and cyl #3 coil! There were no codes at that time! Later found vacuum leak ...

12 Replies Received (View Replies)

  Related Documents & Media  2003 Lincoln Navigator

 
Message Closed w/Summary

car Vehicle Data

2003 Lincoln Navigator

VIN 5LMFU28R73
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursIdle

Trouble Codes

P0308Cylinder 8 Misfire Detected
P0316Misfire Detected On Startup (Within the 1st 1000 Revolutions)
P0401EGR System Insufficient Flow Detected
P0402Excessive EGR System Excessive Flow Detected
Message Closed w/Summary

car Vehicle Data

2003 Lincoln Navigator

VIN 5LMFU28R73
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursIdle

Trouble Codes

P0308Cylinder 8 Misfire Detected
P0316Misfire Detected On Startup (Within the 1st 1000 Revolutions)
P0401EGR System Insufficient Flow Detected
P0402Excessive EGR System Excessive Flow Detected