I am not knowledgeable about ac. My friend is an experienced mechanic who is helping me,
Fords and big rigs so he has a way better grasp than me. This truck is a 12/92 (93) fzj80. The attached photo is what the gauges register with the rig off for about 20 minutes and after the system taking 24oz of r12. Still no cool air. The compressor is working. Any guidance would be appreciated. He feels it is a blockage somewhere? Thanks for looking.
