LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 983 (Heating, Ventilation, And Air Conditioning) >> Repair Instructions >> HVAC Module Assembly Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Drain the engine coolant. Refer to Cooling System Draining and Filling (Vac-N-Fill) or Cooling System Draining and Filling (Static Fill) .
    2. Fig 1: Identifying Heater Hose To Heater Core Fittings
    GM362171Courtesy of GENERAL MOTORS CORP.
  2. Using the J 43181  disconnect the inlet heater hose from the heater core.
    1. Install the J 43181  to the heater core pipe.
    2. Close the tool around the heater core pipe.
    3. Firmly pull the tool into the quick connect end of the heater hose.
    4. Firmly grasp the heater hose. Pull the heater hose forward in order to disengage the inlet hose from the heater core.
  3. Using the J 43181  disconnect the surge tank outlet hose from the heater core.
    1. Install the J 43181  to the heater core pipe.
    2. Close the tool around the heater core pipe.
    3. Firmly pull the tool into the quick connect end of the heater hose.
    4. Firmly grasp the heater hose. Pull the heater hose forward in order to disengage the surge tank outlet hose from the heater core.
  4. Remove the upper intake manifold sight shield. Refer to Upper Intake Manifold Sight Shield Replacement .
  5. Remove the battery. Refer to Battery Replacement .
  6. Remove the accumulator. Refer to Air Conditioning Accumulator Replacement (Non-HP2) .
  7. Remove the instrument panel to the service position. Refer to Instrument Panel Service Positioning (Without SLT) or Instrument Panel Service Positioning (With SLT) .
    8. Fig 2: View Of HVAC Module, Nuts & Bolts
    GM1698730Courtesy of GENERAL MOTORS CORP.
  8. Remove the nuts (2) from the HVAC module (3).
  9. Remove the bolts (1) from the HVAC module (3).
  10. Remove the HVAC module (3).
scientia non olet · About LEMON Manuals