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Symptoms:

  • Broken end plugs
  • Line pressure cannot be adjusted

Cause:

Inability to adjust or inspect the boost regulator valve due to design and breakage of the OEM ratcheting endplug.

Correction:

This replacement end plug allows replacement of missing or broken OEM plugs. The adjustment tool allows line pressure to be tuned by compressing the ratcheting arms of the OEM or Sonnax end plug for adjustment purposes.

01M, 01N, 01P, 096, 097, 098

Ratcheting End Plug
Part No. 119940-22


View Instructions

The boost regulator valve, which regulates EPC pressure feed to the main regulator valve, is secured in the valve body with a ratcheting end plug. Attempting to turn the end plug in order to tune line pressure will cause the end plug to break. Additionally, the boost regulator valve can cause significant wear to the bore, allowing EPC leakage, which can result in low line pressure, soft shifts and burned clutches. This bore should be inspected for wear on every rebuild. The worn bore may be salvaged using the Sonnax Oversized Boost Regulator Valve 119940-05K for 01M, 01N, 01P units, or 119940-07K for 096, 097 and 098 units. Sonnax offers a replacement ratcheting end plug and an adjustment tool to allow line pressure to be fine-tuned.

  • High-quality plastic ratcheting end plug is designed to replace broken or missing OE end plugs.
  • Adjustment tool allows line pressure to be tuned without breaking the end plug by compressing the ratcheting arms of the OE or Sonnax end plug.
  • 119940 22 combo
  • 119940 22

Instructions