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1990 Ford F-150 XLT Lariat 5.0L Lack of power
Posted to Ford Driveability on 8/26/2011 30 Replies

This one has us against the wall. Customer is complaining of lack of power on hills but goes like a bat out of hell on flat ground. We have confirmed this to be true. My question is why will truck on a hill top out at about 55-60 mph at 34-3600 rpm??? it just ...

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car Vehicle Data

1990 Ford F-150 XLT Lariat

VIN 1FTEX15N7L
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFuel Injection / MFI
EmissionsCA CERT
SymptomsLack of Power
OccursUnder Load
Message Closed

car Vehicle Data

1990 Ford F-150 XLT Lariat

VIN 1FTEX15N7L
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFuel Injection / MFI
EmissionsCA CERT
SymptomsLack of Power
OccursUnder Load