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For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Tahoe - 2WD 🢒 Engine 🢒 Engine Cooling 🢒 Radiator Surge Tank Outlet Hose/Pipe Replacement

Radiator Surge Tank Outlet Hose/Pipe Replacement HP2


Object Number: 1970423 Size: MF

Callout

Component Name

Preliminary 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. Remove the air cleaner. Refer to Air Cleaner Assembly Replacement .
  4. Remove the air cleaner resonator outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement .

1

Radiator Surge Tank Outlet Hose Quick Disconnect

Procedure

  1. Squeeze the plastic retainer release tabs and pull the connection apart.
  2. The joint should audibly click upon reassembly and the technician should pull back on the joint to ensure it is engaged properly.

2

Radiator Surge Tank Outlet Hose Clamp

Procedure

Using J 38185 reposition the radiator surge tank outlet hose clamps.

Special Tools

J 38185 Radiator Surge Tank Outlet Hose Clamp

3

Radiator Surge Tank Outlet Hose Quick Disconnect

Procedure

  1. Squeeze the plastic retainer release tabs and pull the connection apart.
  2. The joint should audibly click upon reassembly and the technician should pull back on the joint to ensure it is engaged properly.

4

Radiator Surge Tank Outlet Hose

Tip
Radiator surge tank outlet hose and the heater outlet hose are molded as one hose.

Radiator Surge Tank Outlet Hose/Pipe Replacement 4.8L, 5.3L, and 6.0L Engines

Special Tools

J 43181 Heater Line Quick Connect Release Tool

Removal Procedure

    Object Number: 832066 Size: SH
  1. Drain the cooling system. Refer to Cooling System Draining and Filling.
  2. Loosen the air cleaner outlet duct clamps at the following locations:
    3. • Throttle body
    • Mass airflow/intake air temperature (MAF/IAT) sensor
  3. Remove the air cleaner outlet duct.

    4. Object Number: 659127 Size: SH
  4. If equipped without regular production option (RPO) C36 auxiliary heater, remove the surge tank/heater outlet hose (1) from the mounting clip.

    5. Object Number: 688023 Size: SH
  5. If equipped with RPO C36 auxiliary heater, remove the surge tank/heater outlet hose (1) from the mounting clip.

    6. Object Number: 362171 Size: SH
  6. Install the J 43181 to the surge tank outlet hose (black connector).
  7. Close the J 43181 around the surge tank outlet hose.
  8. Firmly pull the J 43181 into the quick connect end of the outlet hose.

    9. Object Number: 687495 Size: SH
  9. If equipped without RPO C36 auxiliary heater, firmly grasp the outlet hose. Pull the outlet hose in order to disengage the hose from the heater and blower module.

    10. Object Number: 687496 Size: SH
  10. If equipped with RPO C36 auxiliary heater, firmly grasp the outlet hose. Pull the outlet hose in order to disengage the hose from the heater and blower module.

    11. Object Number: 659059 Size: SH
  11. Reposition the surge tank outlet hose clamp at the surge tank.
  12. Remove the surge tank outlet hose (2) from the surge tank.

    13. Object Number: 659180 Size: SH
  13. Reposition the surge tank outlet hose clamp at the water pump.
  14. Remove the surge tank outlet hose from the water pump.
  15. Remove the surge tank outlet hose.

Installation Procedure

    Object Number: 659180 Size: SH
  1. Install the surge tank outlet hose.
  2. Install the surge tank outlet hose to the water pump.
  3. Position the surge tank outlet hose clamp to the water pump.

    4. Object Number: 659059 Size: SH
  4. Install the surge tank outlet hose (2) to the surge tank.
  5. Position the surge tank outlet hose clamp to the surge tank.

    6. Object Number: 687496 Size: SH
  6. If equipped with RPO C36 auxiliary heater, connect the surge tank outlet hose to the heater and blower module.

    7. Object Number: 687495 Size: SH
  7. If equipped without RPO C36 auxiliary heater, connect the surge tank outlet hose to the heater and blower module.

    8. Firmly push the hose onto the heater and blower module pipe until an audible click is heard.


    Object Number: 688023 Size: SH
  8. If equipped with RPO C36 auxiliary heater, install the surge tank/heater outlet hose (1) to the mounting clip.

    9. Object Number: 659127 Size: SH
  9. If equipped without RPO C36 auxiliary heater, install the surge tank/heater outlet hose (1) to the mounting clip.

    10. Object Number: 832066 Size: SH
  10. Install the air cleaner outlet duct.

    11. Object Number: 832068 Size: SH
  11. Align the arrow at the throttle body end of the duct with the throttle body attaching stud.

    12. Caution: Refer to Fastener Caution in the Preface section.

  12. Tighten the air cleaner outlet duct clamps at the following locations:
    13. • Throttle body
    • MAF/IAT sensor

    Tighten
    Tighten the clamps to 7 N·m (62 lb in).

  13. Fill the cooling system. Refer to Cooling System Draining and Filling.