Symptoms:

  • Harsh downshifts
  • TCC apply & release concerns
  • TCC codes
  • Cycling TCC RPM
  • Overheated fluid

Cause:

Wear in the lockup control sleeve allows critical pressure loss that leads to driveability concerns.

Correction:

Recover hydraulic control and renew TCC performance by installing Sonnax drop-in lockup control plunger valve kit.
  • A760E, A760F, A760H, AB60E, AB60F Lockup Control Plunger Valve Kit 157740-37K
  • A760E, A760F, A760H, AB60E, AB60F Lockup Control Plunger Valve Kit 157740-37K

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.

A760E, A760F, A760H, AB60E, AB60F Lockup Control Plunger Valve Kit Vacuum Test Locations