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Low Side Leak after disconnect

BonesDT on Sat July 26, 2008 8:47 PM User is offline

Year: 1999
Make: Ford
Model: Explorer
Engine Size: 4.0 SOHC
Refrigerant Type: R-134a
Country of Origin: United States

I did repairs to my A/C, evacuated, and recharged. Everything went well until I tried to disconnect the low side port from the drier/accumulator.

The guide I had said to disconnect the low side while the engine and compressor were running, then turn off the engine, wait until the high side lowers, then disconnect the high side.

But when I disconnected the low side, it was spewing out coolant with some oil. It was like the valve was stuck or something. The drier is aftermarket and it came with a pretty cheap cap. So I basically couldn't do anything until I screwed the cap on all the way. It seems the cap is keeping it sealed but I'm not too comfortable with that.

The high side disconnected no problems.

My A/C works great, it's just that one thing. Is this normal? Does it just need to get a little out?

99 Ford Explorer

89 Dodge Dakota

Chick on Sat July 26, 2008 8:58 PM User is offlineView users profile

That happens, but the proper way to do it is disconnect the can or tank from the hose, turn the high side thumb screw off, then open the high side wheel and let the low side draw the refrigerant from the the high sidehose into the system thru the low side, you'll see the high side pressure drop to the low side pressure, then it comes off with no pressure. As far as the low side valve sticking, just connect to the port againthe port again, and press down to free it, like pushing it in and out til it pops back up... The cap is the primary seal anyway..hope this helps.

Email: Chick


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