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1999 Ford F-150 XL 4.2L Misfire, MIL Lamp on
Posted to Ford Driveability on 5/18/2005 30 Replies

Hi there, Real head scratcher here. This vehicle misfires under light load only when the EGR is activated. It is always #5 cylinder. I have switched #4 & #5 injectors, spark plugs, ignition wires, problem stays in #5 cyl. Compression test shows 175 psi in that...

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  Related Documents & Media  1999 Ford F-150 XL

 
Message Closed w/FIX

car Vehicle Data

1999 Ford F-150 XL

VIN 2FTZX1728X
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursUnder Load
Message Closed w/FIX

car Vehicle Data

1999 Ford F-150 XL

VIN 2FTZX1728X
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursUnder Load