I have a 2013 Transtar with Waco 1200 System Saver air dryer. There is an air check valve on a T fitting right out of the dryer. The other side of the T goes to the primary air tank. Is this a double check valve that is specific to IH? There is a single way check valve on there now, shorter than an original one. The purge valve leaks about 15 psi after unloading before it quits leaking air. Replaced purge valve, same problem. Thanks for any info.
Air check valve question
Discussion in 'International Forum' started by joejffrs, Nov 24, 2019.
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