gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

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Heater Core Replacement|Page 14625 > < Cooling System, A/C - Aluminum Heater Cores/Radiators|Page 14622

Sierra 1500 4WD V8-5.3L VIN Z Flex Fuel (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: 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 14625 > < Cooling System, A/C - Aluminum Heater Cores/Radiators|Page 14622