948TE, Honda, Acura 9-Speed, ZF9HP48

948TE, Honda, Acura 9-Speed, ZF9HP48 Solenoid Pressure Regulator Valve Kit Part No. 85740-09K Contents Valve Sleeve Sleeve Extension Spring Drill Bit Plug 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.