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Home >> Chrysler >> 2009 >> 300 Signature Series >> Repair and Diagnosis >> External Pages >> Different car >> Section 221 (Nag1 Automatic Transmission (Service Information)) >> Automatic Transmission Nag1 - Service Information >> Unit-ELECTROHYDRAULIC Control >> Description >> Hydraulic Control Unit >> Shift Pressure (p-S)

Shift Pressure (p-S)

WARNING: This page is about a different car, the 2008 Dodge Magnum, 2008 Dodge Charger, and 2008 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

The shift pressure is determined by the shift pressure regulating solenoid valve and the shift pressure regulating valve. The shift pressure:

  1. Regulates the pressure in the activating shift element during the shift phase.
  2. Determines together with the modulating pressure the pressure reduction at the deactivating shift element as regulated by the overlap regulating valve.
  3. Initializes 2nd gear in limp-home mode.
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