A/C Compressor Electronic Control Valve for Hyundai Sonata 2.0L 2.4L 2011-2014 Diagnostic Analysis: The most common problem with this particular compressor is usually not a failure of the compressor itself. Instead, it can be due to a faulty control valve. Along with loss of cooling, common symptoms include air from the vent that is simply fresh or even slightly warm. Suction pressure will be higher than normal, anywhere from 45 to 80 psi, while discharge pressure will remain somewhat normal or lower than normal. Fitment: 2011-2014 Hyundai Sonata 2.0 Liter / 2.4 Liter Engine Kit Includes: 1xA/C Compressor Electronic Control Valve