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2001 Ford F-150 Lariat 5.4L Excessive Emissions, Poor Idle Quality, Cuts out, Stall, Misfire
Posted to Ford Driveability on 2/12/2025 20 Replies

truck came in would not run, customer changed intake plugs coils and injectors. we ran a comp check and had 2 bad cyls so installed a long block truck floods terrible black smoke cts is working properly maff doesn't do anything if unplugged cyl balance tes...

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car Vehicle Data

2001 Ford F-150 Lariat

VIN 1FTRX18L91
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / has injector on every cyl
EmissionsNot OBD-II Compliant
SymptomsExcessive Emissions, Poor Idle Quality, Cuts Out, Stall, Misfire
OccursAlways
Open Help Request

car Vehicle Data

2001 Ford F-150 Lariat

VIN 1FTRX18L91
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / has injector on every cyl
EmissionsNot OBD-II Compliant
SymptomsExcessive Emissions, Poor Idle Quality, Cuts Out, Stall, Misfire
OccursAlways