Rattle/Vibration Noise w/ Air Conditioner running

Hi,

I have a 2013 Hyundai Santa Fe Sport with a little over 140,000 miles. Recently I've noticed a rattle/vibration sound when I step on the gas pedal with the air conditioning running. For example, I have the AC running and I'm sitting still at a traffic light. When I initially press the gas pedal to take off, the engine or something makes a rattle/vibration noise for a short time but once I'm up to speed it's fine. Seems to be when there is an initial load on the engine, then it's fine.

I've had it in to a local mechanic as well as a Hyundai dealer. They both tell me that there is nothing wrong with the AC, the Compressor, the Pulley, or the engine. They also tell me this is a known issue with Hyundai but there is no cause for alarm.

Has anyone else with a Santa Fe about the same age and with the same number of miles experienced this issue, and if so was something repaired to solve the issue?

Thanks
Lawrin Walker