Operation CHARM
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GMC Truck
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2012
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Yukon XL 4WD V8-5.3L
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Repair and Diagnosis
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Engine, Cooling and Exhaust
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Cooling System
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Heater Core
Heater Core
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Service and Repair
Heater Core Cover Replacement
Heater Core Replacement
Auxiliary Heater Core Replacement (Extended Wheelbase)
Auxiliary Heater Core Replacement (Standard Wheelbase)
