hello,
my a/c suddenly started to malfunction. i had started my caddy and put the a/c on auto, but nothing happened. i fiddled with it, then decided to drive on. as i was leaving my driveway, the a/c came on and all was well. since that time, the a/c on auto has shut off suddenly will driving, and this last time it did not start again. it only operates on low. the compressor is running on low, auto, high, but little or no air from the vents. economy and defrost are inop all together. and on off, there is still air coming through the vents. i had the a/c system charged this spring. all was well till now. any suggestions?
thanx
caddymanmarc
1976 cadillac sedan de ville

 

Blower circuits tended to overheat and melt stuff, check fuse box, ATC relay, near fuse box, orange feed wire to control head, and wiring to blower itself.