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1999 Ford F-150 Lariat 5.4L Misfire, MIL Lamp on, Lack of Power
Posted to Ford Driveability on 2/21/2005 19 Replies

Hello; Vehicle came in with SES light on code P0300 random misfire detected. Checked spark plugs and found them worn to a gap of .070 when they should be .050. I replaced spark plugs and boots. Coil over plug design. I replaced the fuel filter it was very rest...

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  Related Documents & Media  1999 Ford F-150 Lariat

 
Message Closed w/Summary

car Vehicle Data

1999 Ford F-150 Lariat

VIN 1FTRX18L9X
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp on, Lack of Power
OccursHot, Under Load, on Accel

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/Summary

car Vehicle Data

1999 Ford F-150 Lariat

VIN 1FTRX18L9X
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp on, Lack of Power
OccursHot, Under Load, on Accel

Trouble Codes

P0300Multiple Misfire Detected