1.
Once the engine has been allowed to cool, disconnect the negative battery cable and
relieve fuel system pressure, referring to the appropriate vehicle service manual for the
procedure on doing so.
2.
Remove the air intake ducting.
3.
Check for any dirt or debris around the fuel injectors. If any is evident, wash it off with
some solvent parts cleaner or wipe it off with a clean shop towel.
4.
Disconnect the electrical connector at each injector, making note of the location of each.
5.
Disconnect both the supply and return fuel lines from the OEM fuel rails. These lines are
attached by a special quick disconnect fitting which requires a special tool for removal.
Place clean shop towels around the open fuel lines to catch any gasoline that may drip out
and to prevent any dirt from entering the fuel lines.
Failure to satisfy all safety considerations will result in fire, explosion, injury and/or
loss of life to yourself and/or others.
6.
Label and disconnect any electrical wiring, vacuum lines and throttle body components
that will interfere with the fuel rail removal and installation.
7.
Remove the 4 mounting bolts that attach the fuel rail to the intake manifold.
8.
Place clean shop towels around the injectors to catch any gasoline that may be spilled
during their removal. Remove the injectors from the manifold by gently pulling upward
on the fuel rail / injector assembly. Keep all injectors connected to the fuel rails. If an
injector does pull out of the fuel rail, it may spill a large amount of gasoline.
Failure to satisfy all safety considerations will result in fire, explosion, injury and/or
loss of life to yourself and/or others.
9.
Carefully remove the fuel injectors from the OEM fuel rail.
10.
Remove the old o-rings from the fuel injectors, inspect the injectors for any dirt or debris
and clean if needed. It is suggested that the old o-rings be replaced, contact your local
parts store or dealer to purchase the correct replacement o-rings.
11.
Carefully install the new injector o-rings on the injectors.
When installing o-rings it is important to place a small amount of light oil on both
the o-ring and the mating surface to ease installation and prevent damaging the o-
ring.
