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← TechnologyWhich outcome occurs when an R-134a automotive AC system experiences overcharge?
A)Reduced cooling system performance✓
B)Increased compressor lubrication
C)Enhanced refrigerant subcooling
D)Decreased high-side system pressure
💡 Explanation
Overcharging causes liquid refrigerant flood-back to the compressor because increased pressure raises the condensing temperature preventing complete evaporation; therefore cooling is inhibited rather than improved, different from ideal refrigerant charge levels.
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