The OE lockup control plunger valve and sleeve wear allowing hydraulic pressure to escape. The reduced or absent pressure affects the timing and quality of the lockup clutch apply and release action.
Replace the worn OE lockup control plunger valve and sleeve with Sonnax direct replacement components.
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.
Contact a Sonnax Parts Distributor.
Vacuum testing at designated test point indicates less than 14 in-Hg.