Paxton Superchargers GM 8.1 HD Truck/SUV - Manual (Page 11)

2-1
P/N: 4809642
©2004 Paxton Automotive
All Rights Reserved, Intl. Copr. Secured
28SEP04(4809642 v1.2)8.1GMTruck
Section 2
INTAKE MANIFOLD REMOVAL
A. Remove the two nuts securing the plastic
bracket that holds the back of the engine
cover on the rear of the intake manifold.
Remove the bracket.
B. Remove both of the studs that are used to
secure the plastic engine cover bracket. This
will un-secure both a small bracket on the
passenger’s side and the rear of the larger
plastic bracket connected to the main injec-
tor wiring harness. Continue un-securing the
wiring harness/bracket assembly by remov-
ing the screw securing the front of the
bracket. (See Fig. 2-a.)
C. Locate the EGR tubes that run over the
top/front of the intake manifold. (Not all
vehicles will be equipped with EGR tubes.
If so, proceed to the next step.) Remove
the nuts securing the tabs on the EGR tubes.
Follow the tubes down to where they meet
with the exhaust manifolds. Each tube will
be secured to an exhaust manifold with two
screws. Remove the screws securing the
EGR tubes from each of the exhaust mani-
folds. Disconnect the two EGR tubes from
the central piece and remove them from the
vehicle. Swivel the remaining middle tube to
the passenger’s side to give clearance for the
manifold removal.
D. Disconnect the main wiring harness running
to the fuel injectors.
E. Remove the EGR tube attached to the EGR
motor located on the rear of the intake mani-
fold.
F. Disconnect the plug running to the top of
the EGR motor located on the rear of the
manifold. Disconnect the two plugs running
to the throttle body. Disconnect the plug to
the EVAP service port.
G. Disconnect the fuel lines running to the fuel
rails.
H. Verify everything is disconnected from the
intake manifold. (Some models may vary.)
I. Remove all fasteners securing the intake
manifold to the engine.
J. Slowly lift up on the manifold breaking the
gasket seal and remove it from the engine
compartment.
Fig. 2-a
2.1 INTAKE MANIFOLD REMOVAL
STUDS AND NUTS
TO BE REMOVED
EGR TUBES