Engine and Technical Discussion
Hello,
I have 2015 Kia Optima with 2.0 Hyundai Nu Engine.
When car is Idle and A/C is on, engine vibrates a bit. Not so much vibration but my old Toyota doesn't have that problem. Is that normal?
I also noticed that RPM does not increase when A/C is on at idle. RPM is at about 650RPM to...