I was driving down the highway last night and when I stopped to turn I heard a weird noise. I have narrowed it down to the air conditioning unit being the cause as the noise stopped when I turned the ac off. I've always had a loud ac unit but this noise is like a sputtering sounds, similar to the sound when air is let out of a balloon. I'm hoping you guys point in the direction or a check list that I should do to solve the problem. Also, where do I find the ac unit? sorry for the newbieness. Thanks for the help.