Printpartsummary
Symptoms:
  • Flare shifts
  • Intermittent clutch codes
  • Intermittent solenoid codes
  • Long shifts
  • Shift quality gets worse as temperature increases
  • Soft shifts
Cause:

Clutch pressure loss around the adjuster

Correction:

Sonnax spring adjusters with O-rings eliminate the clutch oil loss, improving clutch application and shift quality.

09G, 09K, 09M, 6F21WA, TF-60SN, TF-80SC, TF-81SC

Spring Adjuster Kit

Part No.

15741-48K

Spring Adjuster Kit
  • 15741-48k_combo

  • Spring Adjuster Kit

Small_15741-48k_combo Small_15741-48k

09G, 09K, 09M, 6F21WA, TF-60SN, TF-80SC, TF-81SC

Spring Adjuster Kit

Part No. 15741-48K

  • Spring Adjusters (4)
  • O-Rings (6) 2 extra

Fits four locations.

Complaint:

  • Flare shifts
  • Intermittent clutch codes
  • Intermittent solenoid codes
  • Long shifts
  • Shift quality gets worse as temperature increases
  • Soft shifts

Cause:

Clutch pressure loss around the adjuster


Correction:

Sonnax spring adjusters with O-rings eliminate the clutch oil loss, improving clutch application and shift quality.

In Aisin AW TF-60SN, TF-80SC and TF-81SC applications the oil circuit between the clutch control valve and the adjuster is clutch apply oil. The clutch apply oil opposes the solenoid oil and slows the stroke of the valve in response to clutch fill rate. When the adjuster leaks, both clutch oil and fill rate are affected. Installing the Sonnax spring adjuster kit 15741-48K results in shorter, firmer shifts and less variance across temperature range.

Related Parts

You need this if...

Vacuum testing over the adjuster spring fails to hold 12 in-Hg. Use Sonnax test plate to cover and seal each of the four outlined areas in each valve body to perform a vacuum test.

  • Test Locations
  • Test Locations
  • 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 Aisin AW TF-80SC
Valve Body Layout Aisin AW TF-81SC
Valve Body Layout Aisin AW TF-60SN

Related Tech Articles

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