
Originally Posted by
yapoy86
correct me if i'm wrong AFAIK vacuum assist pump for hydro-vac brake boost system is located on the back of the alternator and not on the A/C compressor...this is standard for most cars especially the heavy ones.. but for light cars they don't have a vacuum pump, they get their vacuum assist from engine intake manifold (near cylinder #1 or #4)
possible that the compressor is too large for the engine..
also its possible that the compressor is not a problem at all...i've read a thread regarding idling problem.. they first suspect is the repair made on the power window and car stereo.. but they found out later that the IACV is the cause of the problem and just needs cleaning..