Symptoms:

  • Overheating
  • Repeated converter failure
  • TCC slip
  • TCC slip codes

Cause:

Bore wear can cause excess leakage or sticking valves in the converter and lube circuits resulting in various overheating and drivability issues.

Correction:

Restore hydraulic integrity by reconditioning the bore and installing Sonnax oversized converter and lube relief check valve kits.
  • U660E, U660F, U760E, U760F Oversized Converter & Lube Relief Check Valve Kit 47740-60K
  • U660E, U660F, U760E, U760F Oversized Converter & Lube Relief Check Valve Kit 47740-60K

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.

U660E, U660F, U760E, U760F Oversized Converter & Lube Relief Check Valve Kit Vacuum Test Locations