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GMC Truck
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1997
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C 2500 Truck 2WD V8-5.7L VIN R
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Repair and Diagnosis
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Heating and Air Conditioning
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Testing and Inspection
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Symptom Related Diagnostic Procedures
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Without A/C
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High Temperature Control Effort
High Temperature Control Effort
Temperature Control Effort:
A kinked control cable, a binding valve or a faulty
control assembly
are possible causes of excessive temperature control rotary knob effort.