F 150 Heritage 4WD Pickup V8-5.4L SOHC VIN Z Bi-fuel (2004)
All engines
26. Disconnect the climate control vacuum connector.
27. NOTE: Release any wiring harnesses or vacuum hoses which are attached to the fuel injection supply manifold, before removing the manifold.
Remove the bolts and lift the fuel injection supply manifold and injectors upward, out of the intake manifold.
28. Remove the fuel injectors from the fuel injection supply manifold.
29. Inspect the two O-ring seals from each fuel injector. New O-ring seals will be installed as needed.
INSTALLATION