GM Service Manual Online
For 1990-2009 cars only

Radiator Surge Tank Inlet Hose/Pipe Replacement LY7

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: 785752  Size: SH
  3. Position J 38185 to the clamp in order to remove the surge tank inlet hose (2) from the surge tank (1).

  4. Object Number: 1319084  Size: SH
  5. Position J 38185 to the clamp in order to remove the surge tank inlet hose from the radiator.
  6. Position the J 38185 to the clamp in order to remove the surge tank inlet hose from the throttle body assembly.
  7. Remove the surge tank inlet hose from the vehicle.

Installation Procedure

  1. Position the J 38185 to the clamp in order to connect the surge tank inlet hose to the throttle body assembly.

  2. Object Number: 1319084  Size: SH
  3. Position J 38185 to the clamp in order to connect the surge tank inlet hose to the radiator.

  4. Object Number: 791054  Size: SH
  5. Position the surge tank inlet hose to the retaining feature of the air cleaner assembly.

  6. Object Number: 785752  Size: SH
  7. Route the surge tank inlet hose under the hood assist rod support.
  8. Position the J 38185 to the clamp in order to connect the surge tank inlet hose (2) to the surge tank (1).
  9. Fill the cooling system. Refer to Cooling System Draining and Filling .

Radiator Surge Tank Inlet Hose/Pipe Replacement LH2

Removal Procedure

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

  2. Object Number: 887766  Size: SH
  3. Compress the clamp and remove the surge tank inlet hose from the surge tank.
  4. Compress the clamp and remove the surge tank inlet hose from the radiator.
  5. Remove the surge tank inlet hose from the retaining features on the fan shroud and the air cleaner assembly.
  6. Compress the clamp and remove the surge tank inlet hose from the water housing assembly.
  7. Remove the surge tank inlet hose from the vehicle.

Installation Procedure


    Object Number: 887766  Size: SH
  1. Connect the surge tank inlet hose and clamp to the water housing assembly.
  2. Insert the surge tank inlet hose into the retaining features on the fan shroud and the air cleaner housing assembly.
  3. Connect the surge tank inlet hose and clamp to the radiator.
  4. Connect the surge tank inlet hose and clamp to the surge tank.
  5. Fill the cooling system. Refer to Cooling System Draining and Filling .

Radiator Surge Tank Inlet Hose/Pipe Replacement Right Hand Drive

Removal Procedure

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

  2. Object Number: 1858687  Size: SH
  3. Compress the surge tank inlet hose clamp (1) and remove the surge tank inlet hose (2) from the surge tank.

  4. Object Number: 1858686  Size: SH
  5. Compress the surge tank inlet hose clamp (1) and remove the surge tank inlet hose (2) from the radiator.

  6. Object Number: 1858690  Size: SH
  7. Compress the surge tank hose clamp (1) and remove the surge tank inlet hose (2) from the water housing assembly.
  8. Remove the surge tank inlet hose from the retaining features on the fan shroud.
  9. Remove the surge tank inlet hose from the vehicle.

Installation Procedure


    Object Number: 1858690  Size: SH
  1. Connect the surge tank inlet hose (2) and clamp (1) to the water housing assembly.

  2. Object Number: 1858686  Size: SH
  3. Connect the surge tank inlet hose (2) and clamp (1) to the radiator.
  4. Insert the surge tank inlet hose into the retaining features on the fan shroud.

  5. Object Number: 1858687  Size: SH
  6. Connect the surge tank inlet hose (2) and clamp (1) to the surge tank.
  7. Fill the cooling system. Refer to Cooling System Draining and Filling .