TC unlocking??

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Mar 15, 2018 | 06:49 PM

Liquid10Rider

Thread Starter

More Turbo

Joined: Apr 2009

Posts: 712

Likes: 1

TC unlocking??

Hey guys just a quick run down. I have a 17 F250 6.7 diesel that is fully deleted and I'm running a trans tune as well for better shifting. The TC locks earlier and just small updates. I do not beat on my truck. She is my daily driver so I take care of her. Recently I was driving home 2 nights in a row and hit a rough patch in the road that the plows ripped up and the truck bounced a little and shook than I noticed my rpms went higher and i looked at my gauges and the TC was unlocked at 55 mph so I downshifted and it stayed unlocked for a little bit than locked up. This happened 2 nights at the same spot. Than this evening I hit a differe t rough patch going down a hill 4th gear with the exhaust brake on in the first setting and it was slowing me down and once I hit the patch the truck shifted all the way into 6th and the TC unlocked?? She stayed unlocked for a while. Than I came to a stop and everything was normal again??

any ideas? And this also happened without the trans tunes as well.

Thanks,
AJ

Mar 16, 2018 | 07:55 AM

17350kr

Mountain Pass

Joined: Nov 2017

Posts: 180

Likes: 36

Both have happened to me. I'm not tuned or deleted yet haha. But I think when I hit the pot holes going up a hill and it unlocked maybe it's the computer trying to make sure nothing gets shock loaded. Also happened when going down hill with exhaust brake on. In that case I think it's trying to keep your back wheels from dragging and causing a spin out. Damn safety crap. I think it's normal though and there's nothing wrong with your truck.