问：开车和运行AC时的汽车吹口哨和摇动

Greetings! I will be happy to help. Your description leads me to believe that both of your issues could relate to your serpentine belt. The belt wears out over time, and will at times try to notify the driver of an issue by making a whistling or a squeaking sound. The AC system is belt-driven, so an issue with the belt could cause problems in its performance, such as a shake. However, most of the AC system’s vibrations should be absorbed by the motor mounts, so you should not be experiencing too much shake behind the steering wheel, unless the motor mounts are faulty. Therefore, I also suggest checking the motor mounts for wear and deterioration; factory motor mounts are made of rubber and the rubber insulation becomes brittle over time.

一个好的起点是拥有一位经过认证的机械师，例如来自Yourmechanic的机械师，到达庞蒂亚克的位置以运行万博体育入口对交流系统的检查， 和更换蛇形皮带，如果认为有必要。