B2 accumulator bore wear allows critical pressure loss.
Recover hydraulic control and restore normal shift operation by reconditioning the bores and installing Sonnax oversized B2 accumulator pistons.
Required tool kit F-147741-TL13 is no longer in production. Check with your distributor for availability.
Toyota/Lexus vehicles with listed transmissions may have harsh or slipping shifts and loss of engine braking in D2 range. This is often caused by accumulator piston bore wear that allows leakage in the B2 circuit. In extreme cases, the pistons can become jammed in the bores. Reconditioning the bores and installing Sonnax oversized B2 accumulator pistons 147741-13 will restablishes control of the B2 circuit to restore normal shift operation and feel.
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.
January 16, 2014
Topics: Identification Guides Transmission Toyota/Lexus A760H Transmission AB60E Transmission AB60F Transmission A761E Transmission A750F Transmission A760E Transmission A750E Transmission A760F TransmissionRead Now
December 03, 2013
Topics: Vacuum Test Guides Vacuum Testing Transmission Toyota/Lexus A760H Transmission A761E Transmission A750F Transmission A760E Transmission A750E Transmission A760F TransmissionRead Now
Contact a Sonnax Parts Distributor.
Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected. Bores must be tested concurrently.