Does anyone experience a slight engine vibration or shudder whenever your air con compressor kicks in? Is this normal for Mazda 2.5L engines to behave this way? The vibration can be felt while waiting at stoplight or stuck in traffic with the transmission in Drive. Needle on the tach would also swing between 700 and 500 RPM. Car is 2022 model year. Normally a solenoid is used to increase engine RPM whenever the compressor is on to compensate for the extra load. This would eliminate any vibration. Also special rubber mounts are used to decrease any vibration from being sent to the passenger compartment. Not sure if Mazda and the 2.5L engines are built the same way.