Symptoms:

  • Delayed engagement
  • Converter bushing failure
  • Pressure regulator buzz
  • Lube failures

Cause:

Poor converter feed restricts oil flow to converter/lube circuit, but common aftermarket methods of drilling the valve body to improve lube aggravate existing converter drainback problems.

Correction:

Sonnax drop-in valve regulates lube to improve converter feed at low RPM and high throttle conditions while preventing drainback.
  • A727, A904 Lube Regulated Pressure Regulator Valve 22771A-10K
  • A727, A904 Lube Regulated Pressure Regulator Valve 22771A-10K
  • A727, A904 Lube Regulated Pressure Regulator Valve 22771A-10K details