Tool Required VB-FIX Required

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Symptoms:
  • Converter shudder & TCC slip
  • Loss of fuel economy
  • Lube failures
  • No lockup
  • Overheated fluid & TCC lining
  • Poor converter & cooler oil flow
  • TCC apply & release concerns
  • TCC codes
Cause:

Bore wear at the TCC regulator valve allows pressure loss that leads to TCC and cooler/lube concerns.

Correction:

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

Tool Required VB-FIX Required

CFT30

Oversized TCC Regulator Valve Kit

Part No.

33740-03K

Oversized TCC Regulator Valve Kit
  • 33740-03k_combo

  • Oversized TCC Regulator Valve Kit

Small_33740-03k_combo Small_33740-03k

CFT30

Oversized TCC Regulator Valve Kit

Part No. 33740-03K

  • Valve
  • Spring

Complaint:

  • Converter shudder & TCC slip
  • Loss of fuel economy
  • Lube failures
  • No lockup
  • Overheated fluid & TCC lining
  • Poor converter & cooler oil flow
  • TCC apply & release concerns
  • TCC codes

Cause:

Bore wear at the TCC regulator valve allows pressure loss that leads to TCC and cooler/lube concerns.


Correction:

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

Ford CFT30 transmissions often exhibit TCC apply and release concerns, overheated fluid, poor cooler and lube flow, fuel economy drop, and/or TCC codes. These symptoms may be caused by excess wear of the TCC regulator valve bore, which allows crucial control pressure to escape the circuit. Reconditioning the bore and installing Sonnax oversized TCC regulator valve kit 33740-03K restores critical clearances for renewed TCC/cooler/lube operation.

  • Hardcoat anodized aluminum valve combats premature wear
  • Spring calibrated to restore OE function
  • Annular grooves help center valve in bore to reduce future side-load wear

Required Tools

Related Parts

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.

  • Test Locations

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Valve Body Layouts

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.

Valve Body Layout Ford CFT30

Related Tech Articles

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Ford CFT30 Vacuum Test Guide

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