gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Hose/Line HVAC > < Auxiliary Heater Hose Assembly|Page 1678
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Heater Hose: Service and Repair
Heater Outlet Hose

Heater Hose Routing

Quick Connect Heater Inlet Connector

Remove or Disconnect 

1. Engine coolant.
2. Hose clamps.
3. Inlet hose.
4. Outlet hose clip.
5. Outlet hose.

Install or Connect 

1. Outlet hose.
2. Outlet hose clip.
3. Inlet hose.
4. Hose clamps.
5. Engine coolant.

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Check the system for leaks.

Hose/Line HVAC > < Auxiliary Heater Hose Assembly|Page 1678