Symptoms:

  • Code P0811
  • Delayed engagement
  • Forward slip
  • Reverse slip
  • Burnt Forward clutch
  • Burnt Reverse clutch
  • Overheating

Cause:

Bore wear at the Forward and Reverse engagement latch valve allows critical pressure loss and/or valve hang-up.

Correction:

Recover hydraulic control and renew shift performance by reconditioning the bore and installing Sonnax oversized Forward and Reverse engagement latch valve kit.

CFT30

Oversized Forward & Reverse Engagement Latch Valve Kit
Part No. 33740-07K


You need this if... View Instructions Find a Distributor

The Ford CFT30 Forward and Reverse engagement latch valve provides feedback pressure to the Forward and Reverse engagement valve, balancing the engagement valve to assist with apply and release of the Forward or Reverse clutch packs. Excess wear at this bore causes leakage that affects clutch timing and feel, resulting in delayed engagement, slipping, harsh shifts, burnt Forward or Reverse clutches, code P0811 and overheated fluid. Reconditioning the bore and installing Sonnax oversized Forward and Reverse engagement latch valve kit 33740-07K restores normal shift operation and clutch control by restoring the hydraulic integrity of this circuit.

  • Hardcoat anodized aluminum valve combats premature wear
  • New spring matches OE calibration
  • Valve
  • Spring
  • End Plug
  • O-Rings (2) 1 Extra

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

Ford CFT30 Valve Body Layout
  • CFT30 Oversized Forward & Reverse Engagement Latch Valve Kit 33740-07K
  • CFT30 Oversized Forward & Reverse Engagement Latch Valve Kit 33740-07K

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.

CFT30 Oversized Forward & Reverse Engagement Latch Valve Kit Vacuum Test Locations