Hello all,

I have been struggling with poor shift quality in my 1996 7.3 2WD.
When I initially bought it, it shifted so bad I couldn’t drive it. So I rebuilt the accumulator body with sonnax parts.
The previous owner put a huge line modifier in and I got rid of it for a slightly larger than stock one.
Trans shifted a bit hard but nothing I couldn’t deal with. I drove like that for 1 year.
Today I decided to install a dieselsite accumulator body and at the same time I got rid of a tugger plate that went between the AB and the trans gasket.
Well stupid me took off the lower valve body that attaches to the main valve body because I wasn’t paying attention.
The check ***** fell out and I had to put them back where they came from. I followed directions I had from the factory Ford manual, 2 5/16 check ***** and 2 1/4 check *****. I then torqued the VB back on and took off the AB. I then removed the screen that’s under the AB and then removed the calibration plate from the trans.
I then installed the dieselsite AB and torqued it.
I go to drive the truck and it has all gears manually but it will not shift into 2nd automatically.
It also is shifting earlier than it did before into 3rd gear.
I lost a little fluid so I added more than I took out but so far I’ve added 2 quarts to the trans. I can’t really read the dipstick cause it’s always covered in fluid.
The trans electronically is trying to shift into 2nd. It revs out 1 and then bangs into 3rd.
Any help would be nice.

 

On my 4R100 the lower valve body has the 5/16" ***** on the outboard and the 1/4" inboard. I use TransGel to hold the ***** in place, pet jelly melts too easily.

No 1-2 could be accumulator reg valves sticking I think in that accumulator body. I would not think it is the 1-2 shift valve in upper body as it worked before. Aside from that I would verify all valves move in accumulator body and go from there. I just did a Superior Powertow E4OD/4R100 kit in the 01 Expedition so this is still fairly fresh in my head.

Also, perhaps something installed with the Tugger is not jiving with the other bits. I do know most kits put many parts into the pump and such for volume and flow.

Mark K can assist more I am sure.

 

Well my issue is resolved, a 5/16 ball didn’t find its way in the valve body. All good now.
Sadly the new accumulator body didn’t fix my harsh shifting issue.
Next up is VSS and then the PSOM.

 

What codes are stored in the PCM?

 

I haven’t hooked up forscan yet but my edge CTS2 only shows a keep alive memory code.