GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2001 🢒 Corvette 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Heater Hoses Replacement

Tools Required

J 38185 Spring Hose Clamp Pliers

Removal Procedure

    Object Number: 82060 Size: SH
  1. Drain the coolant. Refer to Cooling System Draining and Filling in Engine Cooling.
  2. Using the J 38185 , release and reposition the outlet heater hose clamp.
  3. Separate the outlet heater hose from heater pipe.
  4. Using the J 38185 , release and reposition the outlet heater hose clamp away from the coolant surge tank.
  5. Separate the outlet heater hose from surge tank inlet.
  6. Remove the outlet heater hose from the vehicle.

    7. Object Number: 380075 Size: SH
  7. Remove the retaining strap (1), which retains the heater inlet hose (2) to the evaporator tube - front.

    8. Object Number: 82059 Size: SH
  8. Using the J 38185 , release and reposition the inlet heater hose clamp away from the heater pipe.
  9. Separate the inlet heater hose from heater pipe.
  10. Using the J 38185 , release and reposition the inlet heater hose clamp away from the engine coolant pump.
  11. Separate the heater inlet hose from coolant pump.
  12. Remove the inlet heater hose from the vehicle.

Installation Procedure

    Object Number: 82059 Size: SH
  1. Using a lint-free clean, dry cloth, carefully clean the sealing surfaces of the heater inlet and outlet pipe ends, the coolant surge tank inlet and the coolant pump.
  2. Position the inlet heater hose to the vehicle.
  3. Install the heater inlet hose to the heater pipe.
  4. Using the J 38185 , install the heater inlet hose clamp.

    5. Align the heater hose clamp as shown.

  5. Install the heater inlet hose to the engine coolant pump.
  6. Using the J 38185 , install the heater hose clamp.

    7. Align the heater hose clamp as shown.


    Object Number: 380075 Size: SH
  7. Install a new retaining strap (1) to retain the heater inlet hose (2) to the evaporator tube - front.

    8. Position the retaining strap as shown.


    Object Number: 82060 Size: SH
  8. Install the outlet heater hose to the heater outlet pipe.
  9. Using the J 38185 , install the heater hose clamp.

    10. Align the heater hose clamp as shown.

  10. Install the outlet heater hose to the coolant surge tank.
  11. Using the J 38185 , install the heater hose clamp.

    12. Align the heater hose clamp as shown.

  12. Refill the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
  13. Inspect the heater hose ends for leaks.