F 150 Heritage 4WD Pickup V8-5.4L SOHC VIN Z Bi-fuel (2004)
2. NOTE: Apply a small amount of petroleum jelly to each check ball prior to positioning them on the valve body separator plate.
Install eight rubber and one steel EPC check balls.
3. NOTE: Apply petroleum jelly to the EPC check ball spring prior to installing it into the case.
Install the EPC check ball spring.
