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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1448 (HVAC Systems - General Servicing) >> Repair Instructions >> Heater Hose Replacement - Outlet (Auxiliary System) >> Removal Procedure

Removal Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the coolant bypass valve. Refer to Coolant Bypass Valve Replacement .
  2. Remove the transmission. Refer to Transmission Replacement (LM4) or Transmission Replacement (LL8) in Automatic Transmission - 4L60/4L65-E.
    3. Fig 1: Identifying Hoses
    GM735781Courtesy of GENERAL MOTORS CORP.
  3. Remove the heater outlet hose (3) from the heater core (1).
    4. Fig 2: View Of Rear A/C Lines
    GM871567Courtesy of GENERAL MOTORS CORP.
  4. Position the outlet heater hose clamp (6) at the water pump using J 38185  .
  5. Remove the heater outlet hose (7) from the outlet hose fitting.
  6. Remove the heater outlet hose.
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