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Symptoms:

  • 3-4 Flare
  • 4-5-6 Slip
  • Erratic shift timing
  • OD clutch distress
  • Overheated fluid
  • Pressure control out-of-range codes
  • OD clutch burned

Cause:

Overdrive pressure control valve bore wear allows critical pressure loss that prevents proper hydraulic control of OD clutches.

Correction:

Recover hydraulic control and renew shift performance by reconditioning the bore and installing Sonnax oversized overdrive pressure control valve kit.

A6GF1, A6LF1/2/3, A6MF1/2

Oversized Overdrive Pressure Control Valve Kit
Part No. 102741-18K


You need this if... View Instructions

Overdrive clutches in listed Hyundai/Kia transmissions are applied in fourth, fifth and sixth gears in conjunction with other clutch packs. As the overdrive pressure control valve oscillates and strokes over time, bore deterioration results, which prevents proper hydraulic control of the OD clutch pack. This can cause flares, slipping, erratic clutch apply timing, ratio codes, and burnt overdrive clutches.

Reconditioning the bore and installing Sonnax oversized overdrive pressure control valve kit 102741-18K returns normal shift operation by restoring hydraulic integrity to the OD circuit.

  • Annular grooves help center valve in bore to reduce future side-load wear
  • New spring matches OE calibration
  • Hardcoat anodized aluminum valve combats premature wear
  • Valve
  • Spring

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.

Hyundai/Kia A6GF1, A6LF1/2/3, A6MF1/2 Valve Body Layout

Hyundai kia vbl thumb

September 30, 2005

Anatomy of a Transmission: Oil Flow in the Pump-PR-Converter-Cooler Lube Circuits

Gregg Nader

Topics: Diagnostics And Theory Transmission

Read Now
  • 102741 18k combo
  • 102741 18k

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.

  • 102741 18k test

Instructions