You guys mabe the right it may come on when I have the defrost on but shouldn't it stay on not go on and off every few seconds. Could this mean my compressor is bad or something needs to be tightnd ? Could the hurt my car if I drive it like that not using the ac. Here is a li.k to a video of it happining http://www.youtube.com/watch?feature...&v=1G5CIg2WJLI