Transmission Parts GM 4T65-E Valve Body Valve / Sleeve

Symptoms:

Erratic line pressure
Low line pressure
Code 1811
Code P0741, P0742
Shudder condition
Slipping gears

Cause:

A worn torque signal valve/bore and/or a sticking torque signal valve.

Correction:

The Sonnax oversized torque signal valve allows you to salvage the valve body by oversizing the bore and restoring proper hydraulic clearances.

4T65-E

Oversized Torque Signal Valve
Part No. 84754-44

Tooling:

84754-TL44

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P1811 code or a slip/shudder condition can indicate a pressure control problem in the GM 4T65-E. A worn or sticking torque signal regulator valve and bore reduces or prevents line rise, resulting in long soft shifts and slippage. Reconditioning the bore and installing Sonnax oversized torque signal valve 84754-44 restores proper hydraulic clearances and function of the torque signal oil circuit.

Salvages valve bodies with worn torque signal bore and/or sticking valve
Corrects P1811 code, slip/shudder condition and intermittent no/poor line rise

Note

To eliminate codes 1811 and 741and TCC-related issues, be sure to also inspect the actuator feed limit valve, boost valve assembly, TCC regulated apply valve and TCC apply valve. The PCM must be reset/relearned after any valve body repairs. Aftermarket scanner relearn procedure or battery disconnect for 12 hours may not restore drivability and line pressure control. Performing a dealer reflash or a web reflash is frequently the only method to properly restore control.

Valve Body Layout

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.