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th400 not shifting right

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Old 09-28-2013, 03:39 PM
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Default th400 not shifting right

I have a Th400 full reverse manual valve body with a pro brake. I removed my progressive nitrous controller and set it up to leave on a 300 shot. The first pass that I did, left hard and good, almost went to the bumper so I sat it down. The next pass that I did the car didn't leave no where like it did the first time and when I would try and shift, it would hit the rev limiter then it would finally shift.....It was doing this on the 2-3 shift mostly, but I tried it today on just the motor and it shifts fine. What could have happened.
Also, When the car gets hot, when you push in the button on the trans brake to put it in reverse the car will not back up, but when it cools down it backs up fine?
Old 09-29-2013, 07:41 AM
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Anyone?
Old 09-29-2013, 09:25 PM
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come on
Old 09-30-2013, 12:31 AM
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If its not backing up warm and its driving through the 3rd gear shift there is something wrong with the direct clutch or that circuit. What does the fluid look like and smell like?
Old 10-01-2013, 06:19 PM
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ever cent I make the test pass leaving on 300 shot car willnt 60ft like it did or leave as hard....helpppp



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