× 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
2002 Ford F-150 King Ranch 4.6L Misfire
Posted to Ford Driveability on 3/25/2008 13 Replies

My question is why would these coils fail for a third time? Customer states both coils have been replaced two times before this repair. Failures are specific at cylinders 3/4. I use a Rotunda IDS and koer test passed, power balance looks good and all fuel trim...

13 Replies Received (View Replies)

  Related Documents & Media  2002 Ford F-150 King Ranch

 
Message Closed w/FIX

car Vehicle Data

2002 Ford F-150 King Ranch

VIN 1FTRW07612
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursUnder Load, Intermittently

Trouble Codes

P0303Cylinder 3 Misfire Detected
P0304Cylinder 4 Misfire Detected
Message Closed w/FIX

car Vehicle Data

2002 Ford F-150 King Ranch

VIN 1FTRW07612
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursUnder Load, Intermittently

Trouble Codes

P0303Cylinder 3 Misfire Detected
P0304Cylinder 4 Misfire Detected