GM Service Manual Online
For 1990-2009 cars only

Fuel Hose/Pipes Replacement - Engine Compartment FICM to Fuel Injection Pump

Removal Procedure

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cables from both batteries.
  2. Remove the fuel tank cap.

  3. Object Number: 791985  Size: SH
  4. Remove the fuel Inlet pipe bolt from fuel injector control module (FICM).
  5. Remove the fuel hose (1) from feed line.
  6. Remove the fuel hose from inlet pipe.

Installation Procedure


    Object Number: 791985  Size: SH

    Important: Always install new fuel line gaskets when servicing fuel lines.

  1. Install the fuel hose to inlet pipe.
  2. Install the fuel hose (1) to feed line.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the fuel inlet pipe bolt to fuel injector control module (FICM).
  5. Tighten
    Tighten the bolt to 12 N·m (106 lb in).

  6. Install the fuel tank cap.
  7. Connect the negative battery cables to both batteries.
  8. Prime the fuel system at the fuel manager 30 times to purge the air out of the hoses.
  9. Start the engine and check for leaks.

Fuel Hose/Pipes Replacement - Engine Compartment Fuel Injection Pump to Y Junction

Removal Procedure

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cables from both batteries.
  2. Remove the fuel tank cap.
  3. Remove the clamps and rubber fuel hose from Y junction to the fuel injection pump.

Installation Procedure

  1. Install the hose and clamps.
  2. Install the fuel tank cap.
  3. Connect the negative battery cables to both batteries.
  4. Prime the fuel system at the fuel manager 30 times to purge the air out of the hoses.
  5. Start the engine and check for leaks.