FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM
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Car repair manuals for everyone.
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GMC Truck
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1991
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Syclone V6-262 4.3L Turbo
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Repair and Diagnosis
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Heating and Air Conditioning
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Compressor HVAC
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Specifications
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Capacity Specifications
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R-4 Compressor
R-4 Compressor
SYSTEM CAPACITIES
Refrigerant
1.587 kg (2 lbs. 8 oz.)
525 Viscosity Compressor Oil
177 ml (6 fl. oz.)