In Reply to: A/C clutch won't engage posted by Robert on August 09, 2001 at 12:05:34:
Stephen P Harvey
'88 735iSE 211K
I just converted my A/C over from R12 to R134A. I recharged with one can of R134A to about 70lbs system pressure. However, the compressor clutch won't engage. I can force it be engage manually by hot wiring with 12V. I've though about the low pressure switch but it was working fine before conversion. Any help would be appreciated.