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.
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 at 3:41 PM.
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