Its not the valve but it does need r12 because the comp keeps turning on and off.but the low side is cold . Is it very to change it to134. How long does it take.
is the accumulator that thing on the firewall.this going to be my first ac job .so can i use the kit. thanks.my ac com is going on and off with r 12.and 12 is very costly. that why i want to change it to 134.