Your transmission is basically regulated @ 60 PSI plus or minus 2.5 psi. Regulator will be on back upper right corner of transmission. Low air pressure or leaking o-rings will effect range shifts. I have leakdown setup I made so I can check pressure and leakdown test on range piston. Fuller has service manual for troubleshooting air system on transmission on roadranger.com
Eaton 18 speed slave valve leaking air from vent
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Cam Roberts, May 13, 2018.
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