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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 909 (Heating, Ventilation & Air Conditioning) >> Repair Instructions >> Heater Core Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 Pontiac Montana, 2002 Oldsmobile Silhouette, and 2002 Chevrolet Venture. However, it is still accessible from the selected car via links, so may be relevant.
  1. Drain the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM .
  2. Remove the left wiper arm linkage nuts. 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.

    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 FILLER TUBE AND SEAL REPLACEMENT .
    7. Fig 1: Heater Hoses At Heater Core
    G01828075Courtesy of GENERAL MOTORS CORP.
  7. Disconnect both of the heater hose clamps at the heater core using the J 38185. 
  8. Remove the heater hoses from the heater core.

    Important:  Cap off the heater core inlet and outlet pipes to prevent coolant spilling inside of the vehicle.

  9. Cap off the heater core pipes.
  10. Remove the heater core cover. Refer to Heater Core Cover Replacement .
    11. Fig 2: Heater Core
    G01828076Courtesy of GENERAL MOTORS CORP.
  11. Remove the heater core pipe retaining clamp screw.
  12. Remove the heater core from the HVAC module.
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