Symptoms:

  • Park release issues

Cause:

Continuous oscillation of ETRS (drive-by-wire) mode 2 boost valve results in excess sleeve bore wear, allowing pressure to leak past the valve.

Correction:

Restore ETRS mode 2 valve functionality by installing the Sonnax drop-in ETRS mode 2 boost valve kit.

9T45, 9T50, 9T60, 9T65

ETRS Mode 2 Boost Valve Kit
Part No. 184740-06K

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

GM 9T45/50/60/65 transmissions using drive-by-wire may develop issues due to wear of the ETRS mode 2 boost valve. Sonnax ETRS mode 2 boost valve kit 184740-06K has upgraded materials and minimal clearances to prevent wear and restores boost valve functionality for the ETRS mode 2 valve.

  • Boost sleeve is manufactured from highly wear-resistant billet aluminum to prevent wear
  • Hardcoat anodized aluminum valve combats premature wear
  • Drop-in Zip Valve™ parts install quickly and easily
Learn More About Zip Valve™ Drop-In Repairs
  • Valve
  • Sleeve

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 9T45, 9T50, 9T60, 9T65 Valve Body Layout

GM 9T45, 9T50, 9T60, 9T65 Valve Body Layout
  • 9T45, 9T50, 9T60, 9T65 ETRS Mode 2 Boost Valve Kit 184740-06K
  • 9T45, 9T50, 9T60, 9T65 ETRS Mode 2 Boost Valve Kit 184740-06K

You need this if...

9T45, 9T50, 9T60, 9T65 ETRS Mode 2 Boost Valve Kit Vacuum Test Locations