basilfaulty
Well-Known Member
- Joined
- Jan 25, 2011
- Messages
- 126
- Vehicle Year
- 1999
- Transmission
- Automatic
4R44E Put in a new updated valve body. 1-2 shift definately better 2-3 shift worse...what next?
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Did you replace all the servos and solenoid packs?
Thats probably the problem, Line pressures all changed and the computer is figuring it out. It will take a while and try to drive the same for awhile like if you were breaking in gears so it learns correctly. Keep us posted on how it works out. Where did you get the valve body through?