02-13-2024, 07:31 PM
Check those pocket door valves. Well known to leak and be creator of air loss in quick fashion. Also check the step cover if you have one. That solenoid valve may be in the ceiling of the forward bays. You will find the leak with patience. I am doubting that the leak is from the air gauges themselves but it is possible. Mine are still tight after 30 years.
--Simon
1993 8v92TA #312