Symptoms:

  • Gear ratio codes
  • Solenoid performance codes
  • Low solenoid feed pressure
  • Delayed engagement
  • Harsh engagement
  • Soft shifts
  • Flare shifts

Cause:

Excess wear allows valuable control pressure to exhaust causing multiple shift concerns and performance code related issues.

Correction:

Restore hydraulic control by reconditioning the bores and installing Sonnax oversized linear solenoid feed dampener valve kit.

AS68RC

Oversized Linear Solenoid Feed Dampener Valve
Part No. 99740-05K

Package Quantity: 3


You need this if... View Instructions Find a Distributor

Aisin Seiki AS68RC units often develop linear solenoid feed related issues caused by excessive wear in the linear solenoid feed dampeners located in the lower valve body casting. Once worn, these dampeners cause low solenoid feed pressure resulting in multiple shift complaints and concerns. Wear can also cause gear ratio errors and solenoid performance codes related to pressure switch 1 and 2.

Reconditioning these bores and installing Sonnax oversized linear solenoid feed dampener valve kit 99740-05K re-establishes correct clearances for proper hydraulic functions and shift control, salvaging these very expensive and hard-to-find valve bodies.

  • Hardened steel valves combat premature wear
  • Oversized valves recalibrated to meet original OE pressures using the OE dampener springs

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.

Aisin Seiki AS68RC Valve Body Layout

Aisin Seiki AS68RC Valve Body Layout
  • AS68RC Oversized Linear Solenoid Feed Dampener Valve 99740-05K
  • AS68RC Oversized Linear Solenoid Feed Dampener Valve 99740-05K

You need this if...

Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected.

AS68RC Oversized Linear Solenoid Feed Dampener Valve Vacuum Test Locations