Installation manual
11
PureFlow AirDog
AirDog
®
2001-2009 DuraMax Diesel
Section 5A Fuel Lines
Installing the AirDog II Fuel Supply Line to the Engine
To install the AirDog II fuel supply line to the engine you must first remove
the (flexible) factory fuel line connecting the fuel tank to the frame mount
steel fuel line.
NOTE: The fuel tank connections
are located behind the tank shield.
It may be necessary to remove or
bend the tank shield down to
access the suction tube quick
connect fitting.
Fuel Tank Shield Fuel Tank Suction Tube
Figure 12 Figure 13
5A-1. Remove the factory fuel supply line from the fuel tank suction tube. Place the 1/2”
fuel line disconnect tool around the fuel line and press into the Quick Connect fitting
to release the locks. Carefully pull the factory quick connect fitting and fuel line from
the fuel tank suction tube. Consult the factory manual if unsure of the procedure.
The DISCONNECT TOOL can be purchased from your local auto parts store.
The connection to the steel fuel line is located on the front of the fuel tank.
Figure 14 Figure 15
5A-2. Disconnect the other end of the fuel supply line from the steel line. This connection is
located between the fuel cooler and the front of the fuel tank. You may now remove the
18” of factory flex line.