Kevin, The cycling of the compressor / relays is due to low freon more than likely. Also, as the air conditioner is running, how fast the fan is blowing over the evaporator coil also has to do with how it cycles on and off. The air system is trying not to let you freez it up by not running the fan over the coil fast enough. You also have relays for the fan speed, and a circut breaker that may be kicking on and off. Normally is't not just one thing it can be a combination. The Fan Fix is a very simple design that uses the right part for the right job. If that was done in the beginning with De Lorean, there wouldn't be a Fix or a Zilla. My fan fix also addresses the low voltage problem to the main relay that the Zilla doesn't. Again, Just a very common sence approach to a very simple problem. Plus mine is only $65.00, not $200.00+. Guaranteed.I own three cars as you can see on the web site, so I have stuided the problems out. Plus I was in electronics for years. But, I'm not an engineer.If you look at other parts that the big dealers sell. Just do a comparison. SpecialTauto.com There's De Lorean 150 amp Alt. $195.00 There's 105 amp $350.00 Fan Fix $65.00 There's $200.00 Fan Fail $19.95 There's None With mine you have extra protection and can run onr or two fans at a time. My new Cooling Fans $179.00 exchange There's $250.00 ea no exchange. $20..00 core allowance=$159.00 I just got tired of seeing over inflated prices. Does this help Call me if you want more. 800-413-3300 office 9-5 972-564-9321 home 972-672-3739 cell John Hervey