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2020 Ford F-150 XL 5.0L Lack of power
Posted to Ford Driveability on 11/9/2026 9 Replies

I'll start with, i replaced all timing chains, guides, tensioners, actuators, soledoids and spark plugs with ford parts. Had timing codes about a month ago. Everything went well, ran great. Customer returned about a month/1000 miles later with cel on w/ p0...

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car Vehicle Data

2020 Ford F-150 XL

VIN 1FTMF1E55L
Engine5.0 L / 8 cyl / FLEX
Trans1-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsLack of Power
OccursNot Applicable

Trouble Codes

P0172Fuel System Too Rich (Bank 1)
Open Help Request

car Vehicle Data

2020 Ford F-150 XL

VIN 1FTMF1E55L
Engine5.0 L / 8 cyl / FLEX
Trans1-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsLack of Power
OccursNot Applicable

Trouble Codes

P0172Fuel System Too Rich (Bank 1)