March 21, 2022
The secondary pressure regulator valve on the Aisin Seiki AS69RC can often wear out. Deterioration at the balance spool end allows for fluid loss resulting in high line pressure, harsh shifts and overheating due to reduced cooler/converter flow. Wear in the boost sleeve can result in converter pressure bleeding into the EPC.
Restore proper hydraulic integrity of the circuit by reconditioning the bore and installing the Sonnax oversized secondary pressure regulator valve kit 122740-28K.
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.