Tool Required VB-FIX Required

Printpartsummary
Symptoms:
  • Delayed Forward
  • Low line pressure
  • No lockup
  • Shift concerns
Cause:

Continuous oscillation of the pressure reducing valve causes valve body bore wear, resulting in diminished solenoid feed pressure and a multitude of drivability complaints.

Correction:

The Sonnax pressure reducing valve kit contains a highly wear-resistant sleeve and valve assembly that restores hydraulic sealing and prevent critical solenoid feed oil loss.

Tool Required VB-FIX Required

A4CF1, A4CF2

Pressure Reducing Valve Kit

Part No.

84741-10K

Pressure Reducing Valve Kit
  • 84741-10k_combo

  • Pressure Reducing Valve Kit

Small_84741-10k_combo Small_84741-10k

A4CF1, A4CF2

Pressure Reducing Valve Kit

Part No. 84741-10K

  • Sleeve
  • Valve
  • Spring
  • Retaining Clip

Complaint:

  • Delayed Forward
  • Low line pressure
  • No lockup
  • Shift concerns

Cause:

Continuous oscillation of the pressure reducing valve causes valve body bore wear, resulting in diminished solenoid feed pressure and a multitude of drivability complaints.


Correction:

The Sonnax pressure reducing valve kit contains a highly wear-resistant sleeve and valve assembly that restores hydraulic sealing and prevent critical solenoid feed oil loss.

Hyundai and Kia vehicles with an A4CF1, A4CF2 transmission may exhibit a multitude of drivability complaints that can be caused by severe wear at the pressure reducing valve, allowing critical solenoid feed pressure to exhaust. The Sonnax pressure reducing valve kit 84741-10K restores the proper hydraulic clearance between the valve and bore, and prevents future wear.

  • Parts are made from highly wear-resistant materials
  • Kit restores hydraulic clearance
  • Spring restores OE pressures

Required Tools

You need this if...

A vacuum test at the port indicated fails to hold at least 18 in-Hg.

  • Test Locations

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Valve Body Layouts

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.

Valve Body Layout Hyundai/Kia A4CF1, A4CF2
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