I'm trying to get the AC working on my truck, 1996 Dodge Ram diesel.
It's been out for a while, and it has 250k miles, so I figure a new accumulator and compressor were in order. Did the condenser too, and changed the o-rings on the all the lines.
I hooked up a set of manifold gauges and a vacuum pump. Pulled a vacuum for a ½ hour. Closed the valves and it held vacuum for ½ hour. So I put in the freon and it worked great for a couple days. Then it quit and the freon was low.
I then shot some UV dye in the system and added another can of freon. Drove around until the AC quit again. I got out the UV flashlight - I can't find a leak anywhere. (They should be pretty obvious, right?)
Best I can tell, the schrader valves are not leaking. They are so cheap, I'm thinking of doing them anyway.
This is my first time doing AC, so it very likely I miss something important. Or that I have no clue what I'm doing. Any advice, besides taking it to a shop?
Thanks!
It's been out for a while, and it has 250k miles, so I figure a new accumulator and compressor were in order. Did the condenser too, and changed the o-rings on the all the lines.
I hooked up a set of manifold gauges and a vacuum pump. Pulled a vacuum for a ½ hour. Closed the valves and it held vacuum for ½ hour. So I put in the freon and it worked great for a couple days. Then it quit and the freon was low.
I then shot some UV dye in the system and added another can of freon. Drove around until the AC quit again. I got out the UV flashlight - I can't find a leak anywhere. (They should be pretty obvious, right?)
Best I can tell, the schrader valves are not leaking. They are so cheap, I'm thinking of doing them anyway.
This is my first time doing AC, so it very likely I miss something important. Or that I have no clue what I'm doing. Any advice, besides taking it to a shop?
Thanks!