gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

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Heater Core Replacement|Page 4218 > < Cooling System, A/C - Aluminum Heater Cores/Radiators|Page 4215

Sierra 1500 4WD V8-5.3L VIN B (2005)

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Heater Core: Service and Repair
Heater Core Replacement

HEATER CORE REPLACEMENT (HEAT ONLY)

REMOVAL PROCEDURE

1. Remove the heater/vent module. See: Heating and Air Conditioning/Housing Assembly HVAC/Service and Repair
2. Remove the heater core cover screws.

3. Remove the heater core cover.

4. Remove the heater core.

INSTALLATION PROCEDURE

1. Install the heater core.

Heater Core Replacement|Page 4218 > < Cooling System, A/C - Aluminum Heater Cores/Radiators|Page 4215