Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - 700R4 Why are the TCI manual valve body instructions so lousy?
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Old 05-18-2006, 06:55 AM
Bayley Bayley is offline
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Originally Posted by eliotmansfield
So with the pan removed and pressing on the servo cover, you can see or feel that the band is clamping the drum? (wiggling the band)

Originally Posted by eliotmansfield
Whith it all assembled and running, do you see pressure in the test ports when selecting 2 or 4 th?
Pressure drops to almost nothing (20 - 30 psi) whenever the gear selecter >= 2nd gear. Reverse, Nuetral, Park and 1st all have 230 - 250 psi. However, as soon as I drop it into second gear, the line pressure drops a couple hundred PSI.

Last night, I reinstalled the original valve body and everything works fine. I feel 99.9% confident that I've reduced the problem to the control circuit(s) in the TCI manual shift valve body.

Did TCI give you a new plate with your valve body, or did you re-use your existing one?
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