Vortech 1999-2006 4.8L/5.3L/6.0L Light Truck/SUV User Manual

Page 26

P/N: 4GL020-010

08OCT08 v5.0(99-07 GM Trk (4GLv5.0))

Fig. 13-a

13. SUPERCHARGER BYPASS VALVE InSTALLATIOn

A. Connect a 3” length of 1” hose from the barb on

the supercharger inlet duct to the outlet of the

bypass valve.

B. Using the supplied #16 hose clamps, connect the

barb on the aluminum discharge duct to the inlet

of the bypass valve using the supplied 1” hose.

(See Fig. 13-a.)

NOTE: Some vehicles may require trimming of the

engine cover to clear various components.

If necessary, trim the cover to clear the

bypass valve hose.

Fig. 13-b

Fig. 13-d

C. Install and tighten hose clamps on each connec-

tion.

D. Using the supplied 5/32” vacuum line and TEE

fitting, connect the bypass valve pressure port to

the manifold vacuum hose that is connected to

the fuel pressure regulator. (See Fig. 8-c.)

E. 2004-2005 Models: Locate the hard plastic line

running to the driver’s side rear of the engine.

Remove the hard line from the rubber hose.

F. 2004-2005 Models: Install the supplied 90° PCV

into the rubber hose on the engine.

G. 2004-2005 Models: Cut the hard plastic line to

reach the PCV valve and connect them with the

supplied length of 3/8” hose. (See Fig. 13-c.)

H. 2004-2005 Models: Locate the capped-off

manifold vacuum port on the passenger’s side

of the intake manifold. Using a file or hacksaw,

remove the tip of the capped-off section. Us-

ing the supplied 5/32” vacuum line connect the

bypass valve pressure port. (See Fig. 13-d.)

Fig. 13-c

5/32" HOSE

SUPERCHARGER

DISCHARGE TUBE

BYPASS VALVE

AIR INLET

DUCT