2001–2003 GMC Duramax 6.6 Fitch Part # F758186BD Installation Instructions
Do not smoke or be near open flame while performing installation. Wear eye protection as the fuel system is under pressure.
Kit includes
• Installation bracket, fuel line disconnect tool, and cable/zip ties.
• EFI multi port fuel injection hose and fuel line quick connect fittings.
Installation Procedure
• Screw the 90* fittings into the top and bottom of the Fitch unit. Tighten down the lock nut on the 90* fittings.
• Using the 18” hose with the female plastic fitting, screw the opposite end to the 90* fitting at the top of the Fitch unit and the 6” male hose to the bottom of the Fitch unit.
• This kit is designed for mounting location of the driver’s side stud on the brake master cylinder. Remove the nut on the stud, and slide the bracket over the stud. Tighten down the original nut removed previously.
• Unscrew the filler cap to release residual pressure in the fuel system.
• Locate the fuel RETURN line (smaller of the 2 lines) containing the fuel line quick connect fitting. This connection is located at the rear of the motor, near the driver’s side fire wall.
• Disconnect the fuel line using the enclosed disconnect tool. There will be a 1/2” and 3/8” connection at the rear of the engine. You will be using the top line which is the 3/8”. Refer to page 2.
• Install the factory female quick connect fitting by sliding it onto our Fitch male quick connect until it bottoms out. Connect the Fitch female quick connect over the factory male and push the locking tab over. Snap in the secondary locking clip on the Fitch female.
• Turn the key to the “on” (not crank) position, wait 10 seconds, turn the key off and repeat 4 – 5 times. This is to prime the fuel system.
• Double check all connections for leaks, and also make sure fuel lines do not come in contact with any of the exhaust, intake, or cooling system components. Priming/Bleeding the system may be needed but varies with every installation to ensure the removal of any air in the fuel line.
• Start vehicle and hold steadily at 1500 rpm for 60 seconds to cycle fuel through system to eliminate air in system.
Get pdf 2001 – 2003 GMC Duramax 6.6 Fitch Part # F758186BD Installation Instructions
