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1-2 shudder at WOT

Started by donky4444, March 16, 2015, 07:15:35 PM

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donky4444

March 16, 2015, 07:15:35 PM
So I'm getting a shudder on the 1-2 shift when at WOT. That's the only time it happens is this a common problem and a sign of something coming?  I have just shy of 60,000 miles, I had the trams flushed last summer and the RDU fluid changed at the sa,e time. PTU has not ben touched. I'm going to go back to stock tomorrow and see if I can replicate it to rule anything funny with the tune. I'll be stopping in the dealership on Friday so I hope it's something that I can replicate when stock since I'm under warranty.
2017 Lincoln MKZ 3.0tt with LMS tune

2014 SHO 402a PP 20" flower wheels. LME  tune, 3 bar MAP, LED Puddle Lights and LED DRL's from Drive Bright, tinted head and tail lights, gloss black vinyl wrapped all chrome with custom chrome SHO emblems front and rear. SOLD

2015 X Sport LME 3 bar tune, LED Puddle and plate lights

SHOdded

#1
March 16, 2015, 07:38:48 PM
PTU can of course be an issue, but so can bad gas, fuel injector, and spark plug.  No codes, I'm assuming?  Any oil in the plug wells (valve cover gasket leak)?  Excessive oil in the intake/CAC?
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

ZSHO

#2
March 16, 2015, 07:44:31 PM
X2 on that,agree with -MANU with excessive oil in the cac or condensation buildup primarily on cold and rainy days are more vulnerable,theres a couple of TSB for the 2011 and also check out this article,hope it helps any,good luck with the fix and keep us updated.Z.   http://blog.bluespringsfordparts.com/245/ecoboost-shudder/


2013 Performance Package SHO| Livernois Custom Methanol Tune|3-Bar Map|Reische-170-Stat|Full Race Tial-10psi BOV in Black|PPE-Gloss Black Hot Pipes|EPP Dual Intake in Gloss Black|PPE Catted DP|Corsa Sport Cat Back Exhaust|H&R Sport-Springs|CFM Performance Billet Valve Cover Breather In Gloss Black|Llumar 20%Ceramic window Tint|MSD Ignition Coils in Black|Extreme Roof Spoiler|Redline Fluids all around|Gearhead Intercooler|First-SHO With Direct Port Alky-VP-M1-100%-Methanol Injection|LMS-Custom-Dyno-Tuned @ 415whp-465wtq| Best Trap Speed of 115.54 mph|

donky4444

#3
March 16, 2015, 10:21:26 PM
Quote from: SHOdded on March 16, 2015, 07:38:48 PM
PTU can of course be an issue, but so can bad gas, fuel injector, and spark plug.  No codes, I'm assuming?  Any oil in the plug wells (valve cover gasket leak)?  Excessive oil in the intake/CAC?

I'll check for codes tomorrow when I go back to stock. The shudder is only at the 1-2 shift. Almost feels like wheel spin or hop. Other then the shift she pulls strong and hard until I get out of it. That is what makes me think it's trans/driveline related.
2017 Lincoln MKZ 3.0tt with LMS tune

2014 SHO 402a PP 20" flower wheels. LME  tune, 3 bar MAP, LED Puddle Lights and LED DRL's from Drive Bright, tinted head and tail lights, gloss black vinyl wrapped all chrome with custom chrome SHO emblems front and rear. SOLD

2015 X Sport LME 3 bar tune, LED Puddle and plate lights

SHOdded

#4
March 16, 2015, 10:27:16 PM
Agreed.  Hope it pops up with stock tune so it can be remedied.
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

AJP turbo

#5
March 16, 2015, 10:29:18 PM Last Edit: March 16, 2015, 10:35:39 PM by ajpturbo
Donky, before you do anything hasty and go to the dealer ask LMS what your 1-2 WOT shift pressure is near redline. If you have anything near or north of 220 that is too much pressure. I see that you have a 4x tune...I'm not really sure what that is in the Livernois world but I'm going to guess it's on the aggressive side.

I had the shutter also. Others were talking about wheel hop...I didn't think that's what it was but I just figured if that's what everyone was saying I went with it...I lowered my pressure to about 200 and it hasn't done it since.

I only noticed mine after a reflash but after the tune aged a little the adaptive for oncoming shift elements lowered the pressure a bit and I wouldn't get it. I think that's why some people may notice quicker shifts after a reflash. It's just because the adaptive hasn't kicked in yet, the adaptive can be disabled completely or the amount of adaptive can be redefined as to how much or little is applied and where and when lol..It's complicated....Also I found in my strategy the 2-3 pressures are really high even in part throttle...I lowered them as well so even after a reflash the 2-3 isn't so rough....Hope that helps...The shuttering to me almost sounds like tranny slipping but I've read that it's just not catching the gear and not as bad as it sounds but I'm not sure
SCT Dealer/Custom Calibrator                        
Specializing in 3.5 Ecoboost   
Remote/email custom tuning including E85 blends 
Authorized retailer for all SCT devices. 
 
Former:2014 PP SHO
3 bar 93 tune, Airaid, Stainless Works non catted DP's  
405whp/520tq
Dyno
     
Current:2016 F150 2.7 Ecoboost
Tuning in progress

91hybrid

#6
March 16, 2015, 11:02:40 PM Last Edit: March 16, 2015, 11:37:53 PM by 91hybrid
Very interesting. Wouldn't lowering the shift pressure cause the transmission to slip more during the shift?
2014 SHO -PP, Unleashed Tuned, 3bar, Devils Own 100% meth, PPE catted down pipes, 3rd cat delete, Magnaflow 2.5" exhaust, 170 deg, NGK 7's plugs, hot pipes - White Platinum 401a
418 whp - 513 wlb/ft
non meth 13.11@103.6 (knock limited)
Meth pass 11.991@114.28

SHOdded

#7
March 16, 2015, 11:21:44 PM
I think bosscav had his SHO's shift pressure adjusted by LME to correct that stutter in the 1-2 shift, and it's working great for him.  Maybe that IS the fix for Don's SHO also.
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

SHOnUup

#8
March 16, 2015, 11:42:49 PM
It has to be the shift pressure...4x plus tune is given out with the warning...."track tune"...not daily driver. Thing is, it's perfectly fine unless WOT from a dig. Then you get the little stutter on shift from 1-2. So if your driving around going balls out all the time, get it softened or switch to another tune. If not, save those WOT pulls for meaning and don't sweat it.

Rich
2011 Sterling Gray Metallic SHO non PP,
12.4211 @ 110.28 Livernois 3bar tune & CAI,
Added since...PPE catless Dpipes, Megan coilovers, Powergrid adjustable end links, and EBC slotted rotors and red stuff pads.
Tommy Designs grille with carbon fiber hydrographics, fender badges and fog bezels hydrodipped also, tinted windows, head & taillights, debadged trunk with all chrome plasti-dipped, black calipers, obdlink mx scantool running torque pro on 7" tablet.

AJP turbo

#9
March 16, 2015, 11:57:16 PM
Quote from: 91hybrid on March 16, 2015, 11:02:40 PM
Very interesting. Wouldn't lowering the shift pressure cause the transmission to slip more during the shift?

I don't actually think it's a slip issue...it's more of something not catching like it needs more time to engage the next gear and with too much pressure being commanded in the oncoming element tables u are not giving it enough time....that's my guess I could be wrong..but I know lowering the pressure to 200 down from 220 helped and I didn't like how the shuttering sounded at all
SCT Dealer/Custom Calibrator                        
Specializing in 3.5 Ecoboost   
Remote/email custom tuning including E85 blends 
Authorized retailer for all SCT devices. 
 
Former:2014 PP SHO
3 bar 93 tune, Airaid, Stainless Works non catted DP's  
405whp/520tq
Dyno
     
Current:2016 F150 2.7 Ecoboost
Tuning in progress

FoMoCoSHO

#10
March 17, 2015, 12:04:01 AM
It's really nice having AJP around to explain all this tuning s*** to us

Thanks!

AJP turbo

#11
March 17, 2015, 12:10:01 AM
Quote from: FoMoCoSHO on March 17, 2015, 12:04:01 AM
It's really nice having AJP around to explain all this tuning s*** to us

Thanks!

Thanks fomo...Well I'm not a pro and I'm sure I will get corrected from time to time...but I'm deep into it and I know some things that will help..I've wasted too much money on software and tunes and should've been happy before with what I had but I can't leave well enough alone plus I enjoy it..

I've had a couple bad tunes before from big names that left me jaded so here I am
SCT Dealer/Custom Calibrator                        
Specializing in 3.5 Ecoboost   
Remote/email custom tuning including E85 blends 
Authorized retailer for all SCT devices. 
 
Former:2014 PP SHO
3 bar 93 tune, Airaid, Stainless Works non catted DP's  
405whp/520tq
Dyno
     
Current:2016 F150 2.7 Ecoboost
Tuning in progress

FoMoCoSHO

#12
March 17, 2015, 12:27:16 AM
Quote from: ajpturbo on March 17, 2015, 12:10:01 AM
Quote from: FoMoCoSHO on March 17, 2015, 12:04:01 AM
It's really nice having AJP around to explain all this tuning s*** to us

Thanks!

Thanks fomo...Well I'm not a pro and I'm sure I will get corrected from time to time...but I'm deep into it and I know some things that will help..I've wasted too much money on software and tunes and should've been happy before with what I had but I can't leave well enough alone plus I enjoy it..

I've had a couple bad tunes before from big names that left me jaded so here I am
Well, I came from a forum where the vendors actually explained things and even helped the guys with the Pro Race package. This forum is quite different as everyone is sooooo worried about their "proprietary tuning" blah, blah, blah. This stuff fascinates me and I just want to learn how it all works.

SHOdded

#13
March 17, 2015, 06:34:27 AM
Here's some basic info related to transmission shift pressure:
http://freeasestudyguides.com/transmission-pressure-control.html
http://en.wikipedia.org/wiki/Transmission_control_unit
Transmission Pressure Control Solenoid (PCS)
Transmission Shift Solenoid

We are able to "tune" these parameters because of the move to shift and pressure control solenoids.
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

BiGMaC

#14
March 17, 2015, 08:07:15 AM
Quote from: SHOdded on March 17, 2015, 06:34:27 AM
Here's some basic info related to transmission shift pressure:
http://freeasestudyguides.com/transmission-pressure-control.html
http://en.wikipedia.org/wiki/Transmission_control_unit
Transmission Pressure Control Solenoid (PCS)
Transmission Shift Solenoid

We are able to "tune" these parameters because of the move to shift and pressure control solenoids.
Thanks Manu.  As always, a timely reference to help me and the rest of the group who really should understand more about how our cars actually work.

•2013 Taurus SHO nonPP - All Ford factory options, 3BAR MAP, LMS v8 tune (mods for 3BAR, DPs, and T-stat), Paint & plastic correction, CQuart finest all exterior surfaces, limo black window tint,VLED Triton switchbacks, Daytime BrightLites switchback DRLs, full interior and exterior LED conversion, Lamin-X charcoal blackout tail lights and reflectors, PPE catted and coated downpipes, EBPP coated hotpipes with BoVs VTA, MDesign CAI
•2013 F250 CC Lariat 6.7EB Diesel -stock
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