Thread: 722.5 5spd-transmission in a diesel?
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Old 04-25-2014, 04:36 PM
Zulfiqar Zulfiqar is offline
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Join Date: Nov 2010
Location: TX
Posts: 3,997
The shift solenoid for the 5th ratio is held closed by a 300 mhz pwm signal which causes the transmission to shift the first 4 gears.

In the last gear approach the pwm is gradually downed till 5th engages smoothly. Its control unit is a bit finicky and not the best. If its not working correctly you end up with a 1-2-3-5 shift.
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