Hello,
I am working on a 95 f-350 7.5L E4OD. The truck has had a lurching problem for years now and no ford dealership has been able to fix it. I was reading today that a bad solenoid pack can cause this problem (TC lockup solenoid), so i went out and disconnected the 9 pin connector today, started the truck and put it in reverse and the truck didnt miss a beat. I pulled the pan and the solenoid pack and it checked good at 20.4 Ohms for each coil. All the pins look good on the pack and the wiring harness. I am wondering if the pack is really the problem by shorting out for a split second causing the lurching or maybe the solenoid bleeding some pressure. I hate to spend the couple hundred on a pack and not have this fixed!

I think I am finally on to the problem because when the pack is disconnected it runs perfect.

Any ideas?
Thanks
Phil

 

Hmm. Doesn't tha just tell the TC when to lock and unlock tho? Maybe its a bad TC? since its not locking or unlocking it rides smooth.