Quick release valve replaced and now my air guages aren't aligning

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by RunningAces, Aug 16, 2025.

  1. RunningAces

    RunningAces Road Train Member

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    2017 t680 isx15 800k miles.
    The quick release valve started leaking so I changed it out. Now my sec air guage always reads a little higher than my primary instead of perfectly lining up like before. Why is it reading like that? Everything else seems to be working properly.
     

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  2. Gayer D.

    Gayer D. Bobtail Member

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    Interesting post, I've been having the same issue for a cpl. months now!