6L80E.PUM05

Rebuilt of your pump stator
Reaming of the pressure regulator valve and converter feed limit valve.
Includes also Oversized Pressure Regulator and Boost valve kit (Sonnax) and Oversized Converter Feed Limit valve kit (Sonnax).
After reaming the bores will be checked on vacuum.
Based on rebuilt and return of your pump stator.
Fill in the form in the link below to inform our sales department and let us know if we need to pick up the parts:
https://www.automaticchoice.com/en/contact/repair-request
Failures 6L80E/6L90E transmissions with JMBX Converter
Problem: iron on iron in the converter; the friction material has perished on the lockup plate.
This can have several causes, which need to be looked at:
• Failing valves in the pump
• Wrong oil (6L80 Judder)
• Old TCM which needs to be replaced
• Excessive wear of the AFL-valve and/or TCC Regulator Valve
Many people overlook that the damage in the converter can be the result of failures in the pump.
That is why you are advised to always do a thorough Vacuum Test on the pump and the valve body, as instructed in the Sonnax Guide.
Should you detect excessive Vacuum leakage, you need to replace the Pump Body or ask us for repair by filling in this form
Be aware that this problem might reoccur, always keep an extra eye on the pump in this case!
More information on our converter repair can be found on 6L80E.TC01
Reading tip: the extensive tech advisory by Sonnax.