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A/C leak questions

dmhoot on Tue June 29, 2010 1:52 PM User is offline

Year: 1998
Make: Dodge
Model: Dakota
Engine Size: v6
Refrigerant Type: r134a
Ambient Temp: 10
Pressure Low: 45
Pressure High: 255
Country of Origin: United States

Hello, I have a leak and it appears to be on the high side line from the compressor to the condenser. The black rubber line is all oily. On the crimped connector i can see small bubble's sometimes. Can these lines be repaired? or is better to Replace? Also, once i have the system opened up and i replace the accumulator/o-tube, can I use the auto 100 oil in my dodge dakota? My friend has some extra auto100 oil left from his repair. One last question is can service ports get worn down? on my low side i can't get my guage set to connect once i start to open up the valve. It snaps on, but once i start turned the valve to open up, it pushs right off. I can connect the quick connect to the guage manifold connect with no problems so i'm wondering if my service port on the lines is worn down? I was able to get the low reading with my cheapy low pressure guage.

Briandl79 on Tue June 29, 2010 2:17 PM User is offline

Worn or not a new Schrader valve only cost a few dollars max so you should replace it if you are having problems, especially since you'll have the system open. I'm sure it's a better idea to replace the line, especially if you don't already know how to repair it, especially since it's a very high pressure line. Don't know about the oil.

mk378 on Tue June 29, 2010 2:37 PM User is offline

Hose leaks can be repaired by having a hose shop crimp new rubber onto your metal ends, but for a recent model where parts are readily available it may be better to just buy a new assembly. If you were to add oil, use the same type that is in the system now, it's probably going to be PAG 46. Usually very little oil leaks out, it doesn't take much oil to make a mess.

Cussboy on Tue June 29, 2010 3:10 PM User is offline

For my '88 B2200 truck I had the high pressure line hose crimp repaired, local AC shop welded a different type of hose barb on, then cut off the bad hose and recrimped, cost $50 while I waited.

For my '94 Suburban with rear AC, I just bought a new AC manifold assembly (3 rubber/metal ines) for about $150.

The board sponsor AMA can also make new hoses or repair yours.

dmhoot on Tue June 29, 2010 8:06 PM User is offline

dmhoot on Tue June 29, 2010 8:10 PM User is offline

Thanks for the reply's. I email'd AMA on the repair cost and a new hose cost. Is their somewhere I can check on the correction type of oil? I know the leak did not lose much oil, but if i replace the accumulator, I will need to add some oil to the accumulator according to my service manual.

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