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GMC Truck
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1987
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Safari Van M L4-151 2.5L
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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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Component Tests and General Diagnostics
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System Operation Check
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System Check - Cycling Clutch Orifice Tube (CCOT)
System Check - Cycling Clutch Orifice Tube (CCOT)
Figure 9-Insufficient Cooling Diagnosis:
Figure 10-Insufficient Cooling Diagnosis (Continued):