My caddy stopped blowing cold last year. A mechanic friend took the relays out in the fuse box under the hood, cleaned the contacts, and put them back in. It then started working. Same problem this spring. I took it to Tuffy's locally and checked pressure and I had 1lb 12oz, so PLENTY of freon. I'm going to go home tonight and screw with the relays to see if I can repeat his magic last year then, if that works, order new relays. I'm also taking it to a shop to have the brakes checked so will have them check the relays and sensors while they're there. I'll post the results. In the meantime, you may want to call your local shop and get a free A/C test. Most places offer a free test.
Tuesday, July 21st, 2020 AT 10:59 AM