A/C turning off when reving high rpm

[zieszx]

Good day,
..well in a nutshell: It began yesterday, all of a sudden.. when I first turn on the car idling AC turns on/works fine, when i rev to about 4.5 rpms it almost seems as if it loses power(the AC controls/fans). When i begin to drive: starts shutting off when i switch into lets say..3rd gear or so, when rpms are getting higher... once i drive for a good while it just simply stays on even after switching up/down gears. before i forget, if its off and im driving, if i go to neutral and hold my clutch in, it turns on..and back off when i go back into gear..weirdest part to me. Ive checked fuses in the kick panel, nothing seems ..out of whack. no error codes either. Advice? Thanks in advance..

[NolimitZ32]

Short somewhere?

[NissanFairladyZ32]

make sure the Freon is full.

Your compressor clutch may be going out.

[zieszx]

thanks for your prompt replies. Actually, turns out it was my alternator which had gone bad.. replaced it myself, turned out great.. was like a 1hr overall job. Easy DIY kinda deal.