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I removed the plug valve from the truck, disassembled it and cleaned it up. There was a fair amount of green and white corrosion. I polished up all of the mating surfaces, lubed it with Teflon grease, and reinstalled it. I also finished replacing the air hose to the gauge and the one to the...

The leak is small enough that it doesn't prevent driving the truck. I have been driving it that way for a year and a half. I didn't even know it was leaking until I started looking for leaks last weekend. I was hoping to get the system to hold air for more than a few hours without leaking down...

I think I'll try taking it out and refurbishing it. It didn't realize that the valve might be repairable.

It's not leaking from the connections. It's actually leaking out where the valve handle comes out of the valve body. I don't see a way to tighten that, but I haven't pulled it out of there and worked on it just yet. It's just a valve that feeds a T for hose couplings. I guess I could replace...

Ok guys, the service air valve under the passenger dash is leaking around the "on/off" handle. It makes foam and bubbles pretty bad when sprayed with soapy water. I want to replace it but I can't find it on any parts list and it doesn't seem to be on any of the air system diagrams in the...