Auto Air Conditioning & Heater Repair: 99 Yucon a/c accumulator, gauge reading, air vents

Question
My A/C cools pretty good in the rear air vents but does not cool in the front. Blows warm air. I noticed that the accumulator is warm in and out is that my problem ...lines going to back of truck are cold..but from the accumulator to the firewall its warm   ......

Answer
Hello Edwin, You may have a clogged front evap orifice tube. I would recommend to take a service gauge reading from the system first to see what`s happening.. Your low side should be 20-30psi and the high 180-210psi. at 1000rpm in idle.

Good luck,davidt