Paxton Superchargers GM 8.1 HD Truck/SUV - Manual (Page 15)

4-1
P/N: 4809642
©2004 Paxton Automotive
All Rights Reserved, Intl. Copr. Secured
28SEP04(4809642 v1.2)8.1GMTruck
Section 4
FUEL INJECTOR REPLACEMENT
4.1 FUEL INJECTOR REPLACEMENT
A. Fuel Injector Replacement:
1.
Disconnect the eight fuel injector
wiring clips and retainers from the fuel
injectors. Release any residual fuel
pressure from the rail by opening the
Schrader valve on the rail.
***NOTE***
Have a fire extinguisher nearby and use
extreme caution.
2. Remove the screws holding down the
factory fuel rail onto the intake mani-
fold. Lift up on the rails evenly remov-
ing all eight injectors.
3. Using a small amount of clean engine
oil, lightly lubricate the O-rings on both
ends of the supplied fuel injectors.
Install the new injectors into the fuel
rails with the terminals facing outward.
***NOTE***
For easiest installation, it might be necessary
to remove the retainer clips from the injectors.
Install the injectors into the fuel rail and re-
install the clips onto the injectors.
4. Carefully lower the fuel rail/injector
assembly down onto the intake mani-
fold. Check to see that each injector has
been seated properly into the manifold.
5. Tighten down the fuel rail assembly
with the original bolts.