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SOLVED: 1990 Bii A4LD Valve Body rebuild with ZERO engagement.


A4LD_Nghtme

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Location
Twin Bridges, CA
Vehicle Year
1990
Make / Model
Bronco II XLT 4
Transmission
Automatic
Hey there all!!! I've officially searched through this site, FTE, and even explorer forums(posted this on there too) but still can't find a straight answer as to a possible problem with my trans. Here is what I changed:
Transtec valve body gaskets.
Transgo and Superior Shift kit combined.
Sonnax Manual Valve Index.
Power Torque 106 TCC.
Power Torque 107 3-4.
Standard Ignition Modulator Valve.

That and I redid the the engine with MSD wires and a coil, autolite irridium sparks, fel pro blue valve cover gaskets, blue streak cap, and motocraft rotor. The engine is much better now that I have zero leaks(trans pan gasket and driver side valve cover gaskets were toast) but I have ZERO engagement after reinstalling the valve body and attaching the s link to the manual valve with the Sonnax index sleeve.

What could be my possible issues?

The TCC solenoid I got from oreillys has no mount like the original? Could pressure have blown the new one out and created a loss of pressure since it's just held in with the single clip that is similar to the one the 3-4 uses as well but that one gets another clip while installing the body to make it snug. Maybe my s link isn't lining the manual valve up correctly? ATF fluid needs a small drain of a few Oz rn so it's not low fluid level. Please help and much love to all the forums! At least she sounds beautiful. Just can't get her moving and that's a bummer. Before I swapped anything I had selectable 1 and 2, drive only rode 1st, and slammed into reverse. Now I have park and neutral only(everything is essentially neutral minus park). Thank you for any information that can assist me. I hope you all are having a great day!!!
 
Last edited:


A4LD_Nghtme

Member
Joined
Nov 7, 2021
Messages
82
Reaction score
47
Points
18
Location
Twin Bridges, CA
Vehicle Year
1990
Make / Model
Bronco II XLT 4
Transmission
Automatic
Just wanted to post an update for all that may see this.
When you drop the valve body and leave it to drain for a few days it really let's loose a lot more fluid than i anticipated. Quick fix was 4 extra qts on top of the 3 i already did and she shifted and has been great for 1400 miles. This was a while ago. Beginners idiocy for sure.
 

alwaysFlOoReD

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'91, '80, '06
Make / Model
Ford, GMC,Dodge
Engine Size
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Transmission
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2WD / 4WD
4WD
Thanks for posting your fix.
 

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