GM Service Manual Online
For 1990-2009 cars only

Radiator Surge Tank Inlet Hose/Pipe Replacement LS3, LS7

Special Tools

J 38185 Hose Clamp Pliers

Removal Procedure

  1. Drain the cooling system. Refer to Cooling System Draining and Filling.
  2. Remove the radiator support. Refer to Radiator Support Replacement.

  3. Object Number: 1481407  Size: SH
  4. Disengage tension and reposition the surge tank inlet hose clamp at the surge tank using the J 38185 Hose Clamp Pliers .
  5. Disconnect the surge tank inlet hose from the surge tank.

  6. Object Number: 1481408  Size: SH
  7. Disengage tension and reposition the surge tank inlet hose clamp at the throttle body assembly using the J 38185 Hose Clamp Pliers .
  8. Disconnect the surge tank inlet hose from the air bleed pipe assembly.

  9. Object Number: 1481405  Size: SH
  10. Disengage tension and reposition the surge tank inlet hose clamp at the radiator using the J 38185 Hose Clamp Pliers .
  11. Disconnect the surge tank inlet hose from the radiator.
  12. Remove the surge tank inlet hose assembly from the vehicle.

Installation Procedure


    Object Number: 1481405  Size: SH

    Note: Lubricate the inside diameters of the hoses with clean coolant prior to installation.

  1. Install the surge tank inlet hose assembly to the vehicle.
  2. Connect the surge tank inlet hose to the radiator.
  3. Disengage tension and reposition the surge tank inlet hose clamp at the radiator using the J 38185 Hose Clamp Pliers .

  4. Object Number: 1481408  Size: SH
  5. Connect the surge tank inlet hose to the air bleed pipe assembly.
  6. Disengage tension and reposition the surge tank inlet hose clamp at the throttle body assembly using the J 38185 Hose Clamp Pliers .

  7. Object Number: 1481407  Size: SH
  8. Connect the surge tank inlet hose to the surge tank.
  9. Disengage tension and reposition the surge tank inlet hose clamp at the surge tank using the J 38185 Hose Clamp Pliers .
  10. Install the radiator support. Refer to Radiator Support Replacement.
  11. Fill the cooling system. Refer to Cooling System Draining and Filling.

Radiator Surge Tank Inlet Hose/Pipe Replacement LS9

Special Tools

J 38185 Hose Clamp Pliers

Removal Procedure

  1. Drain the cooling system. Refer to Cooling System Draining and Filling
  2. Remove the upper intake manifold sight shield. Refer to Upper Intake Manifold Sight Shield Replacement

  3. Object Number: 2094190  Size: SH
  4. Reposition the surge tank inlet hose clamp (1) at the surge tank using the J 38185 Hose Clamp Pliers
  5. Disconnect the surge tank inlet hose (2) from the surge tank.

  6. Object Number: 2094199  Size: SH
  7. Disconnect the surge tank inlet hose quick connect fittings (1) at the engine.

  8. Object Number: 2094194  Size: SH
  9. Disconnect the surge tank inlet hose quick connect fitting (1) from the radiator.
  10. Remove the surge tank inlet hose assembly (2) from the vehicle.

Installation Procedure


    Object Number: 2094194  Size: SH

    Note: Lubricate the inside diameters of the hoses with clean coolant prior to installation.

  1. Install the surge tank inlet hose assembly (2) to the vehicle.
  2. Note: Quick connect fittings must be pushed on, then pulled back to verify proper connector engagement.

  3. Install the surge tank inlet hose quick connect fitting (1) to the radiator.

  4. Object Number: 2094199  Size: SH

    Note: Quick connect fittings must be pushed on, then pulled back to verify proper connector engagement.

  5. Connect the surge tank inlet hose quick connect fittings (1) at the engine.

  6. Object Number: 2094190  Size: SH
  7. Connect the surge tank inlet hose (2) from the surge tank.
  8. Reposition the surge tank inlet hose clamp (1) at the surge tank using the J 38185 Hose Clamp Pliers
  9. Install the upper intake manifold sight shield. Refer to Upper Intake Manifold Sight Shield Replacement
  10. Fill the cooling system. Refer to Cooling System Draining and Filling