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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 366 (HVAC Systems - General Servicing) >> USING R-134a REFRIGERANT >> IDENTIFYING R-134a SYSTEMS & COMPONENTS >> Fittings & "O" Rings

Fittings & "O" Rings

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All R-134a based A/C systems use 1/2" x 16 ACME threaded fittings (identifiable by square threads) and quick-connect service ports. See Fig 1.

Fig 1: Identifying R-134a Service Ports
G93I28488Courtesy of CHRYSLER CORP.
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