No one knows transmissions & torque converters like

Sonnax

No one knows transmissions & torque converters like 2008-sonnax-logo-white

Transmission

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Symptoms:
  • High line pressure
  • Lube & converter overheat issues
  • Slide & rotor failure
  • Unstable line pressure
Cause:

A worn pressure regulator valve and/or bore.

Correction:

Improve slide stability and converter/lube control by reaming the bore and installing the oversized aluminum valve.

Tool Required Icon

Oversized Pressure Regulator Valve Kit

Part No.

84754-46K

4T60, 4T60-E, 4T65-E

  • 84754-46k_combo

  • Oversized Pressure Regulator Valve Kit

Small_84754-46k_combo Small_84754-46k
Tool Required Icon

Oversized Pressure Regulator Valve Kit

Part No.

84754-46K

  • Valve
  • Outer Springs (3)

Complaint:

  • High line pressure
  • Lube & converter overheat issues
  • Slide & rotor failure
  • Unstable line pressure

Cause:

A worn pressure regulator valve and/or bore.


Correction:

Improve slide stability and converter/lube control by reaming the bore and installing the oversized aluminum valve.

  • Material: Steel

Valve bodies with worn pressure regulator bores can display high and/or unstable line pressure.The Sonnax oversized pressure regulator valve kit 84754-46K and tool kit 84754-TL46 salvages these valve bodies by sizing the bore and freshens the bore surface to improve hydraulic integrity to the pressure regulator oil circuit.

  • Improves slide stability by reducing decrease oil loss
  • Improves balance oil circuit to stabilize the slide
  • Salvages valve body core

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Sonnax

March, 2013

GM 4T65-E Vacuum Test Guide

Contact a Sonnax Distributor to purchase this part.