727 kickdown issue
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727 kickdown issue



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Hi Guys,


I just wanted to get your input on this 727 issue. I have a 1965 plymouth fury ii with a 318 poly, and 727. I recently add an aluminum tranny pan to it, that involved me to add an filter extension to lower the filter further into the pan (required adding two quarts of fluid also). I used Mobil 1 synthetic fluid in the tranny, and here is the status:

1. w/o kicking down, the tranny shifts normal.
2. if I disconnect the kickdown, the tranny operates normally.
3. if the kickdown is connected, the kickdown when shifting from 1-2 works fine


4. if the kickdown is connected, the kickdown when shifting from 2-3 acts like it shifts in neutral. It seems to happen around 4500 RPM. If you are already driving at a significant speed, like 55MPH, then perform a kickdown, the it almost always jumps into "neutral". If you start out at dead idle, and floor it, 99% of the time, it will hold 2nd for what seems like to long, then kick into "neutral".
It did not do this before the pan/fluid swap, but that may be a coincidence.


5. shift manually with the kickdown disconnected, evreything is fine.

Is my tranny in need of surgery, or do I need to tighten the bands? Any input appreciated,

thanks,
Derek


Lying alone in the bed we made, watching headlights on the shades (Skid Row, Ghost) ... Said sugar, take it slow and it will work itself out fine, cause all we need is just a little patience (G n' R, Patience) ... Baby you know my hands are dirty, But I wanted to be your valentine (Bon Jovi, I'll Be There For You) ... Table for two on a TV tray, It ain't fancy, baby that's okay (Bon Jovi, Born to Be My Baby) ... Wimpus Americanus - definition: a guy who never says "no" to his lady ... for _whosoever_ believeth in him (John 3:16)


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