GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2004 🢒 Venture 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Heater Inlet Hose Replacement

Heater Inlet Hose Replacement with C60

Tools Required

J 38185 Hose Clamp Pliers

Removal Procedure
  1. Drain the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
  2. Remove the left wiper arm linkage nuts.

    3. Reposition the left wiper arm linkage for access.

  3. Disconnect the vacuum hose from the brake booster and reposition.
  4. Remove the air cleaner cover and intake tube. Refer to Air Cleaner Inlet Duct Replacement in Engine Controls -3.4L.

    5. Important: Disconnect the throttle and cruise control cables to prevent bending the cable housings.

  5. Disconnect the throttle and cruise control cables from the TBI mounting bracket.
  6. Remove the transmission fluid filler tube. Refer to Transmission Fluid Filler Tube and Seal Replacement in Automatic Transaxle - 4T65-E.

    7. Object Number: 395311 Size: SH
  7. Release the quick connect.

    8. Disconnect the inlet heater hose (1) from the inlet pipe (2).


    Object Number: 819323 Size: SH
  8. Disconnect the heater hose clamp using the J 38185 .
  9. Disconnect the inlet heater hose from the heater core.
  10. Remove the inlet heater hose.

Installation Procedure
  1. Install the inlet heater hose.

    2. Object Number: 819323 Size: SH
  2. Connect the inlet heater hose to the heater core.
  3. Position the heater hose clamp using the J 38185 .

    4. Object Number: 395311 Size: SH
  4. Connect the inlet heater hose (1) to the inlet pipe (2).
  5. Install the transmission fluid filler tube. Refer to Transmission Fluid Filler Tube and Seal Replacement in Automatic Transaxle - 4T65-E.
  6. Connect the throttle and cruise control cables to the TBI mounting bracket.
  7. Install the air cleaner cover and intake tube. Refer to Air Cleaner Inlet Duct Replacement in Engine Controls -3.4L.
  8. Connect the vacuum hose to the brake booster .
  9. Install the left wiper arm linkage.

    10. Notice: Refer to Fastener Notice in the Preface section.

  10. Install the left wiper arm linkage nuts.

    11. Tighten
    Tighten the nuts to 5 N·m (44 lb in).

  11. Fill the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.

Heater Inlet Hose Replacement with C69

Tools Required

J 38185 Hose Clamp Pliers

Removal Procedure
  1. Drain the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
  2. Remove the left wiper arm linkage nuts.

    3. Reposition the left wiper arm linkage for access.

  3. Disconnect the vacuum hose from the brake booster and reposition.
  4. Remove the air cleaner cover and intake tube. Refer to Air Cleaner Inlet Duct Replacement in Engine Controls - 3.4L.

    5. Important: Disconnect the throttle and cruise control cables to prevent bending the cable housings.

  5. Disconnect the throttle and cruise control cables from the TBI mounting bracket.
  6. Remove the transmission fluid filler tube. Refer to Transmission Fluid Filler Tube and Seal Replacement in Automatic Transaxle - 4T65-E.

    7. Object Number: 395311 Size: SH
  7. Release the inlet heater hose quick connect from the inlet pipe (2).
  8. Disconnect the inlet heater hose (1) from the inlet pipe (2).

    9. Object Number: 686678 Size: SH
  9. Reposition the inlet heater hose clamp at the heater core using the J 38185 .
  10. Disconnect the inlet heater hose from the heater core.
  11. Reposition the inlet heater hose clamp from the auxiliary heater inlet line using the J 38185 .
  12. Disconnect the inlet heater hose from the auxiliary heater inlet line.
  13. Remove the inlet heater hose.

Installation Procedure

    Object Number: 686678 Size: SH
  1. Install the inlet heater hose.
  2. Connect the inlet heater hose to the auxiliary heater inlet line.
  3. Reposition the inlet heater hose clamp at the auxiliary heater inlet line using the J 38185 .
  4. Connect the inlet heater hose to the heater core.
  5. Reposition the inlet heater hose clamp at the heater core using the J 38185 .

    6. Object Number: 395311 Size: SH
  6. Connect the inlet heater hose (1) to the inlet pipe (2).
  7. Install the transmission fluid filler tube. Refer to Transmission Fluid Filler Tube and Seal Replacement in Automatic Transaxle - 4T65-E.
  8. Connect the throttle and cruise control cables to the TBI mounting bracket.
  9. Install the air cleaner cover and intake tube. Refer to Air Cleaner Inlet Duct Replacement in Engine Controls - 3.4L.
  10. Connect the vacuum hose to the brake booster .
  11. Install the left wiper arm linkage.

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

  12. Install the left wiper arm linkage nuts.

    13. Tighten
    Tighten the nuts to 5 N·m (44 lb in).

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