I purchased an 02 Suburban with 44K this past winter. I don't drive it much, but here lately I had drove it a little and the A/C worked great. Last week it quit blowing cold. At the point of noticing that it was not cooling I had heard a quick 2 second ratcheting/clicking sound up front I believe under hood. The noise was on a second or 2 and maybe 2 to 3 times and then I turned air off when noticing it wasn't working. I took it into a friend and he found that the Belt for the A/C had broke and put a new on one. It has worked great the 2 times I drove it, but at lower speeds or RPM's just starting off it has started making the noise even loader now. Any ideas? Thanks.