GM Service Manual Online
For 1990-2009 cars only

Radiator Surge Tank Outlet Hose/Pipe Replacement LHD

Tools Required

J 38185 Hose Clamp Pliers

Removal Procedure

  1. Drain the cooling system. Refer to Cooling System Draining and Filling .

  2. Object Number: 785754  Size: SH
  3. Position the J 38185 to the clamp in order to remove the surge tank outlet hose (2) from the surge tank (1).
  4. Remove the wiper motor module. Refer to Windshield Wiper System Module Replacement in Wipers/Washer Systems.

  5. Object Number: 785744  Size: SH
  6. Remove the bolt securing the surge tank outlet pipe to the engine rear lift bracket.

  7. Object Number: 785788  Size: SH
  8. Disconnect the heated oxygen sensor connector (1) from the bracket (3).

  9. Object Number: 785743  Size: SH
  10. Remove the bolt (6) securing the surge tank outlet pipe (1) to the vent housing.
  11. Position the J 38185 to the clamp (5) in order to remove the surge tank outlet hose from the coolant inlet pipe (4).
  12. Remove the surge tank outlet hose/pipe (1) from the engine.

Installation Procedure


    Object Number: 785743  Size: SH
  1. Position the surge tank outlet hose/pipe (1) to the engine.
  2. Position the J 38185 to the clamp (5) in order to connect the surge tank outlet hose to the coolant inlet pipe (4).
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the bolt (2) securing the surge tank outlet pipe (1) to the engine rear lift bracket.
  5. Tighten
    Tighten the surge tank outlet pipe to engine rear lift bracket bolt to 9 N·m (80 lb in).

  6. Install the bolt (6) securing the surge tank outlet pipe (1) to the vent housing.
  7. Tighten
    Tighten the surge tank outlet pipe to vent housing bolt to 9 N·m (80 lb in).


    Object Number: 785788  Size: SH
  8. Connect the heated oxygen sensor connector (1) to the bracket (3).

  9. Object Number: 785754  Size: SH
  10. Position the J 38185 to the clamp in order to connect the surge tank outlet hose (2) to the surge tank (1).
  11. Install the wiper motor module. Refer to Windshield Wiper System Module Replacement in Wipers/Washer Systems.
  12. Fill the cooling system. Refer to Cooling System Draining and Filling .

Radiator Surge Tank Outlet Hose/Pipe Replacement RHD

Tools Required

J 38185 Hose Clamp Pliers

Removal Procedure

  1. Partially drain the cooling system. Refer to Cooling System Draining and Filling .

  2. Object Number: 789009  Size: SH
  3. Position the J 38185 to the clamp (1) in order to remove the surge tank outlet hose from the surge tank.

  4. Object Number: 785745  Size: SH
  5. Position the J 38185 to the clamp in order to remove the surge tank outlet hose from the coolant inlet pipe.
  6. Remove the surge tank outlet hose from vehicle.

Installation Procedure


    Object Number: 785745  Size: SH
  1. Position the J 38185 to the clamp in order to connect the surge tank outlet hose to the coolant inlet pipe.

  2. Object Number: 789009  Size: SH
  3. Position the J 38185 to the clamp (1) in order to connect the surge tank outlet hose to the surge tank.
  4. Fill the cooling system. Refer to Cooling System Draining and Filling .

Radiator Surge Tank Outlet Hose/Pipe Replacement LHD, LY7

Tools Required

J 38185 Hose Clamp Pliers

Removal Procedure

  1. Drain the cooling system. Refer to Cooling System Draining and Filling .

  2. Object Number: 785754  Size: SH
  3. Position J 38185 to the clamp in order to remove the outlet hose (2) from the surge tank (1).
  4. Loosen the bolt on the bracket which secures the surge tank outlet hose to the engine.
  5. Position J 38185 to the clamp in order to remove the surge tank outlet hose from the thermostat assembly.
  6. Remove the surge tank outlet hose/pipe from the engine.

Installation Procedure

  1. Position the surge tank outlet hose/pipe to the engine.
  2. Position J 38185 to the clamp in order to connect the surge tank outlet hose to the thermostat assembly.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the bolt to the bracket securing the surge tank outlet pipe to the engine.
  5. Tighten
    Tighten the bolt to 9 N·m (80 lb in).


    Object Number: 785754  Size: SH
  6. Position J 38185 to the clamp in order to connect the outlet hose (2) to the surge tank (1).
  7. Fill the cooling system. Refer to Cooling System Draining and Filling .

Radiator Surge Tank Outlet Hose/Pipe Replacement LS6

Tools Required

J 38185 Hose Clamp Pliers

Removal Procedure

  1. Drain the cooling system. Refer to Cooling System Draining and Filling .

  2. Object Number: 785754  Size: SH
  3. Position J 38185 to the clamp in order to remove the outlet hose (2) from the surge tank (1).
  4. Remove the nuts on the bracket which secures the surge tank outlet hose to the cowl.
  5. Position J 38185 to the clamp in order to remove the surge tank outlet hose from the heater hose pipe.
  6. Remove the surge tank outlet hose from the pipe.

Installation Procedure

  1. Position the surge tank outlet hose to the heater hose pipe.
  2. Position J 38185 to the clamp in order to connect the surge tank outlet hose to the heater hose pipe.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the nut to the bracket securing the surge tank outlet pipe to the cowl.
  5. Tighten
    Tighten the bolt to 9 N·m (80 lb in).


    Object Number: 785754  Size: SH
  6. Position J 38185 to the clamp in order to connect the outlet hose (2) to the surge tank (1).
  7. Fill the cooling system. Refer to Cooling System Draining and Filling .