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  #34  
Old 09-06-2003, 04:27 PM
ww111
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If at first you don't succeed RTFM!

I finally decided to open the book and see how this Shift Servo thing works..

Long story short, it's there to smooth the shifting by clamping and releasing the Reverse Gear Shift Drum. (It's the only part that is Off in 1st, On in 2nd, Off in 3rd and On in 4th.) So to adjust the shifting, tighten it for a harder 2nd and 4th shift. That Softens 3rd!!!

If I'm reading the book right. Releasing the Drum by presurizing 3A allows 3rd gear power out. 3rd gear engagement happens when solenoid 1 and 2 are engaged at the same time.

Has anyone wired idiot lights to see when the TCU is operating the Shift solenoids 1 and 2? I wouldn't think the TCU is releasing the servo before engaging Solenoid 2 but that could cause the problem...

Collins
Out to loosen 1 more time and get rid of that extra fluid.
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