Working on Excursion AC its being a PITA
So last year the system quit working on us, the previous owner had replaced the compressor at the very least. I had charged the system in Colorado and it was working great for a year.....then it would ice up around the canister. Now I know why, lots of debris on the back of the orifice tube. Cleaned it and re installed.
The system will vacuum but will not hold it, after a few hours it bleeds back to 0
I cannot for the life of me find a leak in the system? I have checked every inch of every line.....perhaps its internal?
I tried to charge it with some R134 so I could force a leak, it will not take any r134 in, even with the low pressure switch jumpered and compressor running?
It takes just an ounce or two of R134 then stops...the low side builds pressure up to about 60-80 psi, the high side never seems to change...Clogged?
PITA
After messing with it for 4 days I gave up, for now. I HATE giving up....but I am used to needing parts.
I am pretty sure I need to replace the compressor, condenser, canister, orifice tube, rear valve and flush all the lines.
How the heck do you flush all the AC lines on this beast??
Take it to a shop with a flush machine???
$$$$$ leaking out...........all advice appreciated, lots of metal bits clogging the orifice tube = black death, YEAH!!!