Defueling/TC Locking/Unlocking?

[Powerstroke Man 6.4]

So I ran my truck a few times last night.

Launched good then fell on its face for about a second then picked right back up.

Ran again TC locked and it felt like the TC was unlocking and locking back up? truck did that three times before it actually stayed locked.

I was monitoring EOT,ECT,boost,rail pressure,ebp,trans temp all were normal RP/boost was holding steady.

trans temp was at 170-180. trans fluid is still clean bright red.

TC bad? tune? slipping?

Running GH race billet S366.

TIA

 

[Powerstroke Man 6.4]

Also to add to the top post

Checked with AE after and no codes came up.

 

[Lipka101]

I've had similar issues with mine. I don't know for sure but I'm almost convinced it's the torque converter getting weak. I put a low mile converter in and it took care of it for a while. It's been 20k miles and it's done it a couple times just recently.
Stock trans still?

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[6.4 Stroker]

I would data log converter slippage with AE. That should let you know pretty quickly what's going on.

 

[Powerstroke Man 6.4]

I've had similar issues with mine. I don't know for sure but I'm almost convinced it's the torque converter getting weak. I put a low mile converter in and it took care of it for a while. It's been 20k miles and it's done it a couple times just recently.
Stock trans still?

Sent from my SM-N900V using Tapatalk

Trans is stock

Reloaded the tune and "adjusted" the shift pressure on the SCT from 0% to 20% on every shift.

I don't know if it really changed anything but it seems to shift way better I haven't really opened it up yet though LOL.

Also there is a option for a CAI when first load the tune?

Since its a full custom single turbo tune would that option matter?

 

[Lipka101]

Gotcha. We'll let us know how it goes when you open it up. I don't think the Cai option will make a difference with it being a customer tune.

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[Lipka101]

Trans is stock

Reloaded the tune and "adjusted" the shift pressure on the SCT from 0% to 20% on every shift.

I don't know if it really changed anything but it seems to shift way better I haven't really opened it up yet though LOL.

Also there is a option for a CAI when first load the tune?

Since its a full custom single turbo tune would that option matter?

What was your time when you ran it?

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[Tree Trimmer]

do you by chance have traction control turned OFF?

if not, turn it off and try again.

 

[Powerstroke Man 6.4]

do you by chance have traction control turned OFF?

if not, turn it off and try again.

No traction control.

 

[Powerstroke Man 6.4]

Yesterday truck kept on shifting to TC lock at 40 shifting and alittle weird and the speedometer was a little jumpy, I couldn't figure out what was up I thought it was in limp mode.

I was constantly checking for codes/clearing and nothing was popping up.

P0500

Vehicle Speed Sensor A

came up after awhile changed the sensor and back to normal.