VBFIX-logo-web details-chart-web video-logo-web printlink SERVOFIX-logo-web r_and_r_only maillink sonnax-black Facebook-color Twitter-color LinkedIn-color Youtube-color

Symptoms:

  • Low line pressure
  • Intermittent 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 valve and tool allow 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

1997 & later


View Instructions

P1811 code or a slip/shudder condition can indicate a pressure control problem in the 4T65-E. A worn or sticking torque signal regulator valve and bore reduces or prevents line rise, resulting in long soft shifts and slippage. The Sonnax 84754-TL44 tool kit sizes and finishes the bore to accept the oversized valve 84754-44, restoring proper function to 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.

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.

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.

GM 4T65-E Valve Body Layout

Gm 4t65 e thumb

March 21, 2013

GM 4T65-E Vacuum Test Guide

Topics: Vacuum Test Guides Vacuum Testing Transmission GM 4T65-E Transmission

Read Now
  • 84754 44 combo
  • 84754 44