Transmission Parts Chrysler Honda/Acura ZF ZF9HP48 948TE Honda, Acura 9-Speed Valve Body Valve / Sleeve

Symptoms:

Delayed engagement
Harsh downshifts
Harsh upshifts
Neutral shifts
High line pressure
Wrong gear starts
Gear ratio & solenoid codes
TCC slip
Flare shifts

Cause:

All solenoids are fed by the solenoid pressure regulator valve. Worn valve/bore surfaces allow critical pressurized oil to cross-leak to the sump, reducing available oil pressure and volume for the solenoids. Shift quality will be adversely affected by wear and operating temperatures.

Correction:

Restore normal operation on moderately worn bores by installing the Sonnax drop-in solenoid pressure regulator valve kit.

948TE, Honda, Acura 9-Speed, ZF9HP48

Solenoid Pressure Regulator Valve Kit
Part No. 85740-09K

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Chrysler 948TE, Honda/Acura 9-Speed and ZF9HP48 units incorporate variable force solenoids to control clutch apply/release, torque converter clutch apply/release and line pressure. The solenoid pressure regulator valve insures proper flow volume and pressure to the solenoids during hot conditions and low pressure operation. Low feed pressure at idle can create delayed engagement or wrong gear starts. This valve also limits the maximum pressure to all the solenoids. Excessive solenoid feed pressure can flood the solenoids causing gear ratio codes, harsh up/downshifts and excessive line pressure. Sonnax drop-in solenoid pressure regulator valve kit 85740-09K restores proper solenoid pressure regulation.

Hardcoat anodized aluminum valve combats premature wear
Highly wear resistant billet sleeve seals bore from wear-related fluid loss and provides new, unworn bore for the valve to operate
New spring provided for correct limit pressure
Drill and plug included to allow for quick rerouting of balance oil at the separator plate
Drop-in Zip Valve™ parts install quickly and easily

Learn More About Zip Valve™ Drop-In Repairs

Contents

Valve
Sleeve
Sleeve Extension
Spring
Drill Bit Not shown
Plug Not Shown

Valve Body Layout

Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. See all Sonnax valve body layouts.