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GMC Truck
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1998
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K 3500 Truck 4WD V8-454 7.4L VIN J SFI
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Repair and Diagnosis
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Heating and Air Conditioning
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Control Assembly
Control Assembly
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Description and Operation
Control Assembly, HVAC
Temperature Valve and Heater Core
Locations
Auxiliary Heater Fan Switch
Auxiliary HVAC Control Logic Module
Auxiliary HVAC Control Module, Front & Rear
Service and Repair
Cables
Control Assembly Lamp Bulb
Primary System
Heating System Only
Heating & A/C System
Diagrams
Auxiliary Heater and A/C Control Logic Module
General
Front
Rear
Heater and A/C Control Switch
C1
C3
Specifications
