[TomH]

Ditto for me. About every 7 seconds on my 88 944NA. Someone here or at Rennlist suggested that I recharge my AC, as it was an indication that I was low on freon.

Shelled out $200 for more freon, and it still cycles. It is the compressor, as you can definitely feel a temp difference between when it clicks on and when it clicks off.

Does yours cycle everytime you use it? Most of the times mine does, but on some days it does not. I haven't tried to keep close track of the relationship between real hot days, vs. cool summer days, but I want to say it cycles more during hotter days.