We have a Eaton RTLO-16913L-DM3 transmission. The air regulator/filter is hissing out a-lot of air. If I plug the Regulator exhaust port with my finger then air comes out the Range solenoid block exhaust port. This truck loses air relatively quickly while parked and this is the only leak I can find. Is this normal or what might be causing this?
Eaton Transmission Air Leak
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by mechman, Dec 14, 2021.
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I’d definitely start with replacing that regulator.
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