buick regal 93, 3.8 engine, a/c compressor
 

i've got a buick regal 93. my a/c stopped cooling. i noticed the clotch is engaging correctly but no pressure builds-up in the system. knowing this by touching the hi pressure line which does not get warm like it should. you may think in a sheared shaft, but the problem is that this happened gradually. a'm going to take the comp. off check and write again.