GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2008 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Engine 🢒 Engine Controls and Fuel - 6.6L 🢒 Fuel Hose/Pipes Replacement - Chassis

Removal Procedure

    Object Number: 1865984 Size: SH
  1. Remove the fuel tank(s) as required. Refer to Fuel Tank Replacement .
  2. Disconnect the fuel feed and return front pipes from the chassis pipes, if required. Refer to Plastic Collar Quick Connect Fitting Service .

    3. Object Number: 1865985 Size: SH
  3. Remove the fuel feed and return pipe clip nuts (1), as required.

    4. Object Number: 1865986 Size: SH
  4. Remove the fuel pump bracket nuts (1), if required.
  5. Disconnect the wiring harness electrical connector from the fuel pump electrical connector, if required.
  6. Remove the fuel feed/return/brake pipe bundle from the vehicle.

Installation Procedure

    Object Number: 1865986 Size: SH
  1. Position and install the fuel feed/return/brake pipe bundle to the vehicle.
  2. Connect the wiring harness electrical connector to the fuel pump electrical connector, if required.

    3. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the fuel pump bracket nuts (1), if required.

    4. Tighten
    Tighten the nuts to 25 N·m (18 lb ft).


    Object Number: 1865985 Size: SH
  4. Instal the fuel feed and return pipe clip nut (1), as required.

    5. Tighten
    Tighten the nuts to 25 N·m (18 lb ft).


    Object Number: 1865984 Size: SH
  5. Connect the fuel feed and return front pipes to the chassis pipes, if required. Refer to Plastic Collar Quick Connect Fitting Service .
  6. Install the fuel tank(s) as required. Refer to Fuel Tank Replacement .