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1999 Ford F-150 Lariat 5.4L Misfire, MIL Lamp on
Posted to Ford Driveability on 11/12/2009 16 Replies

engine missfires when power braking in reverse only. to the point of blowing the 30 amp fuse to the ignition and vehicle dies. will not missfire in forward. I have been looking for a chafed wire with no success. hoping someone has seen this before. alldata doe...

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  Related Documents & Media  1999 Ford F-150 Lariat

 
Message Closed w/FIX

car Vehicle Data

1999 Ford F-150 Lariat

VIN 1FTRX18L8X
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursUnder Load

Trouble Codes

P0307Cylinder 7 Misfire Detected
P0357Ignition Coil 7 Primary Circuit Malfunction
Message Closed w/FIX

car Vehicle Data

1999 Ford F-150 Lariat

VIN 1FTRX18L8X
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursUnder Load

Trouble Codes

P0307Cylinder 7 Misfire Detected
P0357Ignition Coil 7 Primary Circuit Malfunction