LMS Tune, Transmission Slips & Traction Control

14SHOCAR · April 07, 2015, 09:21:22 AM

So I have a concerning issue since I got the LMS 93 Octane tune. Ever since I got the tune, I've been noticing at WOT that the shift from first to second is REALLY hard. I was told that it will "soften up", but it also really concerns but driving into work, I punched it to get up to speed and I felt the transmission slip from 1st to 2nd gear. I'm starting to grow concerned that this tune is DESTROYING my transmission.

I did have Traction Control on, so it could be the torque converter could have detecting tire slip, and applying the power to the front wheels... but Its almost like I need to roll with my traction control off to do any sort of WOT on the car.

Anyone experience anything similar?

SHOnUup · April 07, 2015, 09:28:57 AM

I wasnt, then after miles I was...changed trans fluid...gone!!!

Rich

SHOdded · April 07, 2015, 09:35:45 AM

You could try having the shift pressure lowered, for one thing. But if your tires are in an environment hostile to them, they may not give you the traction you need either. You have the F1's on there now? What temps are you seeing on a daily basis? Tire pressures?

AJP turbo · April 07, 2015, 09:39:42 AM

Describe the slipping....the torque converter doesn't have anything to do with traction control....and it's not sending more power to the front...it's always there this is not a rear biased awe system....I'd ask livernois to lower the 1-2 wot shift pressure to no more than 200 psi max

AJP turbo · April 07, 2015, 09:42:51 AM

Quote from: SHOnUup on April 07, 2015, 09:28:57 AM
I wasnt, then after miles I was...changed trans fluid...gone!!!

Rich

I doubt the fluid had anything to do with helping but probably more due to the min and max learned start pressure settings for the adaptive scalars in your tune

ZSHO · April 07, 2015, 09:50:20 AM

Did you disconnectbthe battery,if so you must perform the battery relearn,so essentially the trans must relearn its adaptive strategy,overtime the learning process will fully update trans operation to its optimum shift feel.Z

14SHOCAR · April 07, 2015, 09:51:44 AM

I'll reach out the LMS to see if they can lower the transmission pressure at WOT. Normal driving, the transitions are smooth.

If I take off traction control, I don't have slipping.. does it change your answers at all? Just curious...

14SHOCAR · April 07, 2015, 09:53:15 AM

Quote from: ZSHO on April 07, 2015, 09:50:20 AM
Did you disconnectbthe battery,if so you must perform the battery relearn,so essentially the trans must relearn its adaptive strategy,overtime the learning process will fully update trans operation to its optimum shift feel.Z

I did disconnect the battery to swap out plugs. How long does this "relearn" take. I installed the tune last week Thursday.

FoMoCoSHO · April 07, 2015, 09:56:44 AM

The first thing that needs to happen is reach out to LME and let them know what is up. Lots of us have been through this with both of our main beloved ecoboost tuners. I'm sure they will get you squared away in short order.

AJP turbo · April 07, 2015, 10:01:42 AM

Quote from: 14SHOCAR on April 07, 2015, 09:51:44 AM
I'll reach out the LMS to see if they can lower the transmission pressure at WOT. Normal driving, the transitions are smooth.

If I take off traction control, I don't have slipping.. does it change your answers at all? Just curious...

No but I'd have to feel and hear it first hand

ZSHO · April 07, 2015, 10:05:34 AM

Good luck and keep us updated.Z

SHOnUup · April 07, 2015, 10:57:35 AM

Quote from: ajpturbo on April 07, 2015, 09:42:51 AM
Quote from: SHOnUup on April 07, 2015, 09:28:57 AM
I wasnt, then after miles I was...changed trans fluid...gone!!!

Rich

I doubt the fluid had anything to do with helping but probably more due to the min and max learned start pressure settings for the adaptive scalars in your tune

Highly doubtful, unless the car learns while turned off sitting in the garage. Changed fluid, went WOT run it was gone...Flash tune and still gone. Stiffer shift with the flash, no stutter though. And the stiffer shifting after this fluid change and flash was much less harsh than prior flashes.

Rich

SHOdded · April 07, 2015, 11:00:59 AM

That fluid you pulled out was looking unexpectedly nasty too, Rich!

14SHOCAR · April 07, 2015, 11:06:50 AM

Quote from: SHOnUup on April 07, 2015, 10:57:35 AM

Quote from: ajpturbo on April 07, 2015, 09:42:51 AM
Quote from: SHOnUup on April 07, 2015, 09:28:57 AM
I wasnt, then after miles I was...changed trans fluid...gone!!!

Rich

I doubt the fluid had anything to do with helping but probably more due to the min and max learned start pressure settings for the adaptive scalars in your tune

Highly doubtful, unless the car learns while turned off sitting in the garage. Changed fluid, went WOT run it was gone...Flash tune and still gone. Stiffer shift with the flash, no stutter though. And the stiffer shifting after this fluid change and flash was much less harsh than prior flashes.

Rich

How many miles did you have on your SHO? Mine only has about 26,700

SHOnUup · April 07, 2015, 11:15:37 AM

48k...30 k should be changed I say.

Will finally be sending out my oil samples soon. Got a trans sample last week and was going to get one from the PTU again but Ford "couldnt" change. Maybe the test samples can shed some light on it.

The fluid was quite dark. Might be a worthwhile 15 minutes to let a little trans fluid out and check it's color.

Rich