2014 santa fe limited. Ac has leaked in the past. I recharged this spring, low side only as I don't have a manifold. Ac works until rear ac is turned on. When the rear ac mode is activated, pressure increases low side and compressor seems to shut down and vents turn warm. If I turn the ac off and back on without rear ac activated it cools fine. Pressure low side is 35-40psi at 75-80 ambient. Temp at vent is from 48 to 54. Possible overcharge? Airflow seems normal front and rear. Thanks for any advice.