F150online Forums - Blown 4.6l w motor

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Brian Spinks

03-15-2019 04:30 PM

Blown 4.6l w motor

I have a 99 f150 with a 4.6 liter w motor not original motor lost power computer showing blow by in 2 cylinders and a knock in another 1. Truck runs but runs rough had full tune up last year. Hoping I don't have to change motor but if I do what motors are interchangable

glc	03-15-2019 04:44 PM

Unless the replacement motor is PI, you can use 1997-2001 non-PI.

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