5r55e shifts out of 3, no forth after sonn. Shift kit | Ford Explorer Forums - Serious Explorations

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5r55e shifts out of 3, no forth after sonn. Shift kit

sattech2000

Elite Explorer
Joined
December 12, 2010
Messages
94
Reaction score
13
Location
S.W. Mich
City, State
Stevensville
Year, Model & Trim Level
1999 Ford Explorer
Pulled the 5r55e out of my 2000 explorer parts truck that has been sitting a few years, worked great when parked. Put a Sonnex shift correction kit in it along with a new BW EPC valve, retaining bracket and a Ford bonded separator plate/gaskets. Drained as much fluid out of everything and blew the lines a few times from both directions. I also adjusted the bands while I had it out and filled with fresh motorcraft mercon 5.

Everything feels great until it shifts out of third but dosnt go into fourth. If I manually downshift one gear it will go back into third and stay there.

I'm sure I have something wrong in the valve body. Any tips one what area to focus on when I pull it back out?
 






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