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  • Converter shudder & TCC slip
  • Loss of fuel economy
  • Overheated fluid & TCC lining
  • TCC apply concerns
  • TCC codes


Bore wear at the TCC apply valve allows pressure loss that causes driveability concerns.


Recover hydraulic control and renew TCC performance by reconditioning the bore and installing Sonnax oversized TCC apply valve.


Oversized TCC Apply Valve
Part No. 33740-06

You need this if... View Instructions

Ford vehicles equipped with CFT30 transmissions may exhibit TCC problems such as shudder, slipping, overheated fluid and failed clutch lining. TCC codes can accompany these issues or set before symptoms are noticed. Reconditioning the bore and installing Sonnax oversized TCC apply valve 33740-06 restores hydraulic integrity to the circuit for revived TCC operation and control. The hardcoat anodized aluminum valve combats premature wear.

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.

Ford CFT30 Valve Body Layout

Fd cft30 vbl

March 07, 2016

Ford CFT30 Vacuum Test Guide

Topics: Vacuum Test Guides Vacuum Testing Transmission Ford CFT30 Transmission

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September 30, 2005

Anatomy of a Transmission: Oil Flow in the Pump-PR-Converter-Cooler Lube Circuits

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Topics: Diagnostics And Theory Transmission

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  • 33740 06 in combo
  • 33740 06

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.

  • 33740 06 test