Operation CHARM
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GMC Truck
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1991
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V 3500 P/U 4WD V8-454 7.4L
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Repair and Diagnosis
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Specifications
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Mechanical Specifications
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Compressor HVAC
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System Specifications
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Compressor Clutch Air Gap
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With A-6 Compressor
With A-6 Compressor
Clutch Plate Air Gap
0.56-1.34 mm (0.022-0.057 inch)