Symptoms:

  • Repeated converter failure
  • Damaged converter
  • Excess converter pressure
  • No lockup
  • TCC slip
  • TCC apply & release concerns

Cause:

RFE transmissions lack a specific valve that controls the apply side of the converter pressure. Excess converter pressure can cause converter damage, ballooning and converter failure.

Correction:

Sonnax drop-in TCC apply limit switch valve kit limits the amount of pressure applied to the torque converter without affecting the line pressure or creating partial apply drivability issues.
  • 45RFE, 545RFE, 65RFE, 66RFE, 68RFE TCC Apply Limit Switch Valve Kit 44912-36K
  • 45RFE, 545RFE, 65RFE, 66RFE, 68RFE TCC Apply Limit Switch Valve Kit 44912-36K

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.

45RFE, 545RFE, 65RFE, 66RFE, 68RFE TCC Apply Limit Switch Valve Kit Vacuum Test Locations