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Repair Questions and Answers.

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 #395697  by XboXC
 
Hi.
I have a problem with my transmission.

When i start from "0" and just run faster the transmission is working fine. Just shifting to next gear.
But when they need shift down from 3 to 2 and next 2 to 3, that second shift is very hard.
I try do Quicklearn but still they hard shift.
I replaced valve body and solenoid pack (both used, not new) but still i have the same problem.
I don't have any DTC codes. Just hard shifting from 2 to 3 after downshift.
 #395749  by LordHobbit
 
how long has it been since you serviced the transmission? Fluid flush and filter replace? How many miles on the transmission?
 #395751  by rustybronco
 
Here's a manual for the trans.
http://at-manuals.com/wp-content/upload ... manual.pdf

It should have all you need to do pressure tests and have the diagnostic subroutines. I don't think at this point there is any other way to diagnose the issue.
User avatar
 #395757  by TrepKing95
 
The 42LE has a pretty simple clutch application chart,
Reverse is Rev and Low/Reverse (L/R)
1st is UnderDrive (UD) and L/R
2nd is UD and 2/4
3rd is UD and OverDrive (OD)
4th is OD and 2/4

Using this information a hard shift from 2 into 3 could be the 2/4 clutch not releasing quickly enough causing the transmission to bind up resulting in the hard shift.