Originally Posted by reno96teg
nope :hs:, that's not what's happening. this is not the compressor kicking on and off. this is the vent opening and closing on it's own (at least that's my best guess). it's definitely not normal. also, this started happening within the past year. i've had the car for over 6 years.
Worst case scenario, it's the recirc motor that will need replacing. :hs:
(The motor test procedure is on 21-29, Vol 2 of the Helms Manual. if you need it, I'll transcribe it.) I would first see if the linkage that controls the vent door is binding or has become detatched from the door itself.