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Home >> Chevrolet >> 2021 >> Trailblazer RS, 4WD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating, Ventilation, And Air Conditioning System >> Repair Instructions >> Heater Outlet Hose Replacement (LIH)

Heater Outlet Hose Replacement (LIH)

GM5258108Courtesy of GENERAL MOTORS COMPANY
Callout Component Name

Preliminary Procedures

  1. Drain the cooling system. Cooling System Draining and Filling (GE-47716) , or Cooling System Draining and Filling (Static)
  2. Air Cleaner Outlet Front Duct Replacement
  3. Air Cleaner Outlet Rear Duct Replacement
  4. Air Cleaner Assembly Replacement
1 Heater Outlet Hose Connector Retainer
2 Heater Outlet Hose Clamp
Procedure 
Hose Clamp Replacement Guidelines - Spring Type
3 Heater Outlet Hose

Procedure

  1. Reposition the fuel lines to access the heater outlet hose.
  2. Fill the cooling system to the proper level. Cooling System Draining and Filling (GE-47716) , or Cooling System Draining and Filling (Static)
  3. Start the engine and check for coolant leaks.