th400 shift problem
th400 shift problem went to the track today and i have a problem with my 1st gear to 2nd gear shift. Trans doesnt slip and 2nd to 3rd is fine. when i shift into 2nd its like the car go's in neutral and hits the limiter. When i let off the gas and get back on it hits 2nd gear and its fine. Sometimes it will go in gear once you let off somethings it might take 2-3 times.
So since it wont slip in gear is the trans ok, what could this be
So since it wont slip in gear is the trans ok, what could this be
I had the same problem with my old TH400. It would only do it under part throttle. If I hammered down on it, it shifted fine. Maybe someone with some experience with the 400 will chime in.
mine seems to only do it at the track at WOT. once its in 2nd gear its fine,
someone help , maybe i'll pull it today since iam going with another stall anyway
what control that 1st to 2nd gear shift, must be it i would think
someone help , maybe i'll pull it today since iam going with another stall anyway
what control that 1st to 2nd gear shift, must be it i would think
You either have an issue with the intermediate clutch or the intermediate sprag if I had to guess. Either way the trans will have to come out of the car to be inspected. Vince
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
forgot to ask what could cause this so i can make sure its fixed, to much power for a stock th400, need a better cooler maybe.
Thinking about pulling it apart and try to find something bad.
Thinking about pulling it apart and try to find something bad.
Only took it to 6300rpm and it was still making a big jump in power, but at 6300 it was 380's rwhp and 320 or 330 TQ . Should be making over 400rwhp at 6800 -7000 tho
whats the stock th400 good for , power that is
whats the stock th400 good for , power that is
Good rebuild (assuming 34 element sprag) with stock hard parts ~1000hp
The guy i bought it from said it was rebuilt and sat around for a year or more .
Has anyone ever pulled there th400 apart and fixed it or rebuilt it there self. I read its pretty easy if you putting it back the way you found it and not doing mods to it.
Has anyone ever pulled there th400 apart and fixed it or rebuilt it there self. I read its pretty easy if you putting it back the way you found it and not doing mods to it.
