I could never get the engine A/C in my 1987 El Capitan to work right. It would cycle too much despite being charged, and didn't put out cold enough air. My solution? Take everything out except for the...
This statements don't make much. I had a 92 explorer got a kit to change it to 134A only thing in kit was pacs oil and fitting to screw on to act as snap on for High and Low side. after vacuum and a couple can of R 134 a up and running nothing else changed.