LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1233 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> HVAC Module Assembly Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install new seals (1, 2, 3) to the outer HVAC control module.
  2. Install the HVAC control module to the vehicle.
    Fig 1: Installing Seals To Outer HVAC Control Module
    G01482036Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to FASTENER NOTICE .
  3. Install the nuts which secure the HVAC control module to the dash.

    Tighten 

    Tighten the nuts to 10 N.m (89 lb in).

    Fig 2: Installing Nuts To Secure HVAC Control Module To Dash
    G01482037Courtesy of GENERAL MOTORS CORP.
  4. Install the evaporator drain elbow.
  5. Connect the vacuum hoses to the HVAC module assembly.
  6. Connect the electrical connectors to the HVAC module assembly.
    Fig 3: Installing Evaporator Drain Elbow
    G01482038Courtesy of GENERAL MOTORS CORP.
  7. Install the heater core outlet cover.
  8. Install the cover screws to the heater core outlet.

    Tighten 

    Tighten the screws to 1.5 N.m (13 lb in).

    Fig 4: Installing Heater Core Outlet Cover
    G01482039Courtesy of GENERAL MOTORS CORP.
  9. Install the cross vehicle beam to the vehicle.
    Fig 5: Installing Cross Vehicle Beam
    G01482040Courtesy of GENERAL MOTORS CORP.

    Important:  Do NOT tighten the bolts at this time.

  10. Install the bolts which secure the right cross vehicle beam to the hinge pillar.
    Fig 6: Installing Bolts To Secure Right Cross Vehicle Beam To Hinge Pillar
    G01482041Courtesy of GENERAL MOTORS CORP.
  11. Install the bolts which secure the left cross vehicle beam to the hinge pillar.

    Tighten 

    Tighten the bolts to 20 N.m(15 lb ft).

    Fig 7: Installing Bolts To Secure Left Cross Vehicle Beam To Hinge Pillar
    G01482042Courtesy of GENERAL MOTORS CORP.
  12. Install the bolt (1) to the cross vehicle beam.

    Tighten 

    Tighten the bolt to 20 N.m (15 lb ft).

    Fig 8: Installing Bolt To Cross Vehicle Beam
    G01482043Courtesy of GENERAL MOTORS CORP.
  13. Install the bolts to the upper support brackets of the HVAC module.

    Tighten 

    Tighten the bolts to 10 N.m (89 lb in).

    Fig 9: Installing Bolts To Upper Support Brackets
    G01482044Courtesy of GENERAL MOTORS CORP.
  14. Install the HVAC module center support bracket.
  15. Install the bolts to the center support bracket of the HVAC module.

    Tighten 

    Tighten the bolts to 10 N.m (89 lb in).

  16. Install the instrument panel wiring harness on to the cross vehicle beam and secure the retaining clips.
    Fig 10: Installing Bolts To Center Support Bracket
    G01482045Courtesy of GENERAL MOTORS CORP.
  17. Install the BCM bracket and bolts.

    Tighten 

    Tighten the bolts to 10 N.m (89 lb in).

    Fig 11: Installing BCM Bracket & Bolts
    G01482046Courtesy of GENERAL MOTORS CORP.
  18. Install the fuse block to the holder.
  19. Install the 2 screws below the fuse block that hold the main wiring harness connector to the cross vehicle beam.
    Fig 12: Installing Fuse Block
    G01482047Courtesy of GENERAL MOTORS CORP.
  20. Install the steering column support bracket to the cross vehicle beam.
  21. Install the steering column support bracket nuts and bolts.

    Tighten 

    Tighten the nuts and bolts to 50 N.m (37 lb ft).

  22. Install the brake pedal. Refer to BRAKE PEDAL ASSEMBLY .
  23. Connect all disconnected ground wires.
  24. Install the passenger side SIR inflator module. Refer to REMOVAL & INSTALLATION (PASSENGER-SIDE) .
    Fig 13: Installing Steering Column Support Bracket, Nuts & Bolts
    G01482048Courtesy of GENERAL MOTORS CORP.
  25. Install the right and left side air distribution duct
  26. Install the screws to the right and left side air distribution duct.

    Tighten 

    Tighten the screws to 1.5 N.m (13 lb in).

  27. Install the I/P trim pad. Refer to TRIM PAD REPLACEMENT - INSTRUMENT PANEL (I/P) .
    Fig 14: Installing Right & Left Side Air Distribution Duct & Screws
    G01482049Courtesy of GENERAL MOTORS CORP.
  28. Connect the inlet and outlet heater hose to the heater core.

    Important:  Reposition the heater core hose clamps in the indicated location.

  29. Use J 38185  in order to reposition the heater hose inlet and outlet clamp to the heater core.
  30. Install the fuel injector sight shield (3.8L only). Refer to FUEL INJECTOR SIGHT SHIELD REPLACEMENT (L36) or FUEL INJECTOR SIGHT SHIELD REPLACEMENT (L67) .
  31. Fill the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM .
    Fig 15: Connecting Inlet & Outlet Heater Hose To Heater Core
    G01482050Courtesy of GENERAL MOTORS CORP.
  32. Install new O-rings seals on the accumulator tube. Refer to O-Ring Replacement 
  33. Connect the evaporator tube to the evaporator.
  34. Connect the accumulator tube to the evaporator.
  35. Install the accumulator tube to evaporator core block fitting bolt.

    Tighten 

    Tighten the screws to 16 N.m (12 lb ft).

  36. Install the air cleaner assembly.
  37. Connect the battery negative cable. Refer to BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE .
  38. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery And Recharging  .
  39. Leak test the fittings of the component using J 39400-A  .
Fig 16: Installing Accumulator Tube To Evaporator Core Block Fitting Bolt
G01482051Courtesy of GENERAL MOTORS CORP.
scientia non olet · About LEMON Manuals