![]() AFL fluid is routed through the 2-3 shift valve and fills the D432 fluid circuit.In the upshifted position, the following changes occur: Exhausting signal B fluid is represented by the arrows through the solenoid.ĪFL fluid pressure at the 2-3 shift valve moves the valve train toward the solenoid. ![]() However, the exhaust port through the solenoid is larger than orifice #29 to prevent a buildup of pressure in the signal B fluid circuit at the solenoid end of the 2-3 shift valve. Note: AFL fluid continues to feed signal B fluid to the solenoid through orifice #29. ![]() As vehicle speed increases further and other vehicle operating conditions are appropriate, the PCM de-energizes the normally open 2-3 shift solenoid valve in order to shift the transmission into Third gear.ĭe-energized (turned OFF) by the PCM, the solenoid opens and actuator feed limit signal B fluid exhausts through the solenoid. ![]()
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January 2023
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