The Jatco JF506E, VW 09A neutral control valve controls the low clutch operating pressure in gears 1, 2 and 3. Because the valve is constantly oscillating from solenoid pressure, it commonly wears the valve bore. Wear in this bore can result in loss of control in the low clutch circuit, causing delayed forward and slipping in any of these low gears. Sonnax oversized neutral control valve kit 122892-13K allows you to restore the proper hydraulic control to the low clutch circuit.
A vacuum test at the port indicated fails to hold at least 18 in-Hg.