Warning:
The ZF9HP48 PBW (Park By Wire) and PBC (Park By Cable) have different plunger diameters and should not be interchanged.
Symptoms:
Loss of higher gears
Damaged A dog clutch
Damaged F dog clutch
Input shaft damage
P3 & P4 sun gear damage
Delayed engagement
Cycling RPM during shift
Cause:
The dog clutch plunger valves provide source pressure for both the A and F dog clutch apply and release. Responding to TCM and the linear solenoid, the clutch control valve establishes control timing of apply and release relative to engine RPM. Bore wear will cause an overlap or premature exhaust of clutch pressure.
Correction:
Sonnax drop-in A & F dog clutch plunger valve kit corrects circuit pressure loss and restores control timing of the A and F dog clutch valves.
Chrysler 948TE, Honda/Acura, 9-speed and ZF9HP48 transmissions are equipped with an aluminum sleeve for the A and F dog clutch plunger valve. This material is prone to wear from valve plunger reciprocation. Failure of this sleeve results in a variety of shift problems and solenoid codes. Sonnax A & F dog clutch plunger valve kit 85740-05K restores the correct hydraulic clearance and proper function of the assembly.
Hardcoat anodized aluminum valves combat premature wear
Highly wear-resistant sleeves increase service life
Drop-in Zip Valve™ parts install quickly and easily
Contents
Valves (2)
Sleeves (2)