Torqshift solenoid question

[nvme_63]

I have done some research and have not really found the answer to my question. Is there any way to clean the solenoids in these torqshifts? i just put a donor trans in my truck while i have mine rebuilt and it is not shifting correctly.
Thanks,

Nick

[Lubbockguy1979]

What is it doing? I'm not aware if a cleaning proceedure.

[Lubbockguy1979]

Also if you had problems with yours and did not change or flush the cooler good it could be contaminated

[thesmokinstroke02]

After we got it done it shifted good then it just got stuck in overdrive I think. He could put the shifter in 1st and run it up to 85mph without it shifting once. He flushed all fluids and changed filters also.

[Lubbockguy1979]

The valve body as you know is all electric so a simple solenoid change migh work if you could get to somw scanning software it would help you diagnose. If it is in limp mode it will go to 3rd which will scream at 60-65mph haven't heard of them sticking in od though.

[nvme_63]

As konnor stated I flushed the Trans lines, and trans cooler. I also replaced the internal and external filters. Now after looking I realize that I did use the wrong fluid. I used mercon not the mercon sp or mercon v. I'm not sure this would cause this much of a problem though. And the Trans will shift 3 times before it makes the tow haul start flashing. Once this starts flashing it gets stuck in gear. I believe it is getting stuck in 4th but I'm not 100% sure. It also feels like the TC is staying in full lockup. If I shut the truck off while moving it will reset and it will do this every time. The shifts are very violent. This is all I can think of right now, if anything else comes to mind I will be sure to post. Thanks again for all the help.

[Lubbockguy1979]

Our trucks are actally 6 speeds. 1-2 3-5 then 6th or od. 4th is rarely used. How is ur reverse? Does it slip or hop?

[nvme_63]

Reverse seem to be fine. The trans is kind of harsh when shifting from drive to reverse thats the only thing I can think of.

[Evil Eye]

Does it still do it when it isn't tuned?

[nvme_63]

yeah. It has the stock file loaded right now. I dont want to run any tunes until it is shifting correctly. i did try the street tune for a very short period of time. It does the same thing as stock.