Symptoms:

  • Soft shifts
  • Poor shift quality
  • Low base line pressure
  • High line pressure

Cause:

Worn, tired OE pressure regulator springs or aftermarket springs with higher spring ratings.

Correction:

The Sonnax elevated pressure main pressure regulator springs are designed to provide an effective baseline pressure. The slight increase in spring pressure compensates for wear elsewhere in the transmission.
  • C6 Elevated Pressure Main Pressure Regulator Spring 36946-13