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Gradually Overheat at Idle with AC On

ChasingHeat

By ChasingHeat
July 17, 2020 in 1999-2013 Silverado 1500 & Sierra 1500

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redvett

Senior Enthusiast

redvett

Posted April 29, 2024

Posted April 29, 2024

Any newer AC systems using R134A or R-1234yf must be charged to exact specifications called peaking otherwise cooling will be insufficient and if overcharged cooling will be poor also along with destroying the compressor due to high pressures so no more doing it the cheap way.

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