LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 741 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Heater Core Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 Pontiac Montana, 2003 Oldsmobile Silhouette, and 2003 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  in Engine Cooling.
  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. Refer to AIR CLEANER INTAKE DUCT in Removal & Installation.

    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  in Automatic Transaxle - 4T65-E.
  7. Disconnect both of the heater hose clamps at the heater core using the J 38185. 
    Fig 1: Removing Heater Hoses & Clamps
    G01482668Courtesy of GENERAL MOTORS CORP.
  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. Remove the heater core pipe retaining clamp screw.
    Fig 2: Removing Heater Core Pipe Retaining Clamp Screw
    G01482669Courtesy of GENERAL MOTORS CORP.
  12. Remove the heater core from the HVAC module.
scientia non olet · About LEMON Manuals