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hesitation issue help!

Started by Ecentballer, August 25, 2017, 09:51:28 PM

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dubcitySHO

Had the dealership monitored the torque converter (TC) lock up behaviour with their scan tool? 

I had symptoms that were VERY similar, unless I'm mis-understanding something in the OP.  Mine ended up being the TC and haven't had an issue since it was replaced. 

2018 Magnetic Metallic F-150 XLT FX4 SCrew, 20% 3M Tint, Currently researching reputable F-150 tuners....

sholxgt

Quote from: dubcitySHO on November 09, 2017, 07:03:02 AM
Had the dealership monitored the torque converter (TC) lock up behaviour with their scan tool? 

I had symptoms that were VERY similar, unless I'm mis-understanding something in the OP.  Mine ended up being the TC and haven't had an issue since it was replaced.

Yes!  When mine is given the command to lock, it starts the stutter.  Had the driveline tech for a ride along and whenever he gave it the command, the stutter would start.  I agree that it's likely the converter, but they aren't willing to replace it.  It could technically be something motor related that is instigated by putting the motor under load when the converter locks.

He also noted a misfire during those events, but is that the motor misfiring or is the faulty converter causing it with a fast lock/unlock/lock/unlock?  Car had fresh plugs, a cleaned out CAC, and was low miles at the time.

Now nearing 50,000 miles and the car runs no better or worse.  When the wife drives it, she just drives in sport mode and beats the snot out of it.  Running it hard avoids the stutter.
Current - 2019 F150 Platinum FX4 3.5 EB
Formerly -2013 MKS Ecoboost Premium
PPE Catted DP's, 170 Reische TS, K&N Drop In, AJP Tune only at track - 12.87@106

SHOdded

Which again likely points to the TC as the O/D is avoided in Sport mode.  Need a new dealership to work with.
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!