: 94 Eldorado 4T80E No Forward Gears After Shift Solenoid Change

07-03-10, 01:00 AM
As the thread title states, I changed the shift solenoids (a+b) out in my 94 Eldorados 4T80E, got the check balls situated properly (did it assembling the valve body upside down), installed the L bracket that came with the kit to hold the new filter in place, put it all back together, filled to proper level on dipstick - reverse works great, but D, 3,2 and 1 do nothing. Neutral is fine.
Any ideas?
No codes are set. Really need to get this thing moving again tomorrow. Fluid was not burnt really or dark. Deep red, smelled fresh.

07-03-10, 02:40 PM
Does this sound like an issue with the check balls?
I really have to get this car moving.. The police are now bugging me.

07-03-10, 09:00 PM
Well, after having no damn idea what was wrong I just pulled it all down again.
Check balls were positioned correctly, fluid level was right, no BS in the fluid.
Put it all back together, filled her up: WOOHOo! We have forward gears.
But why? I did NOTHING different. Any ideas, folks?

07-03-10, 10:43 PM
I'm stumped. I think someone once said valve body torque settings where critical, but I'm not sure. That's all I can think of.

07-05-10, 06:53 PM
Valve body torque settings are important. Torque is in the 8 to 12 ft/lb range. it is really easy to overtighten bolts and bind it up. You are lucky it worked the second time.