Ecoboost vibration at 2300 RPM
 

Is it just me, or does the eco-boost 3.5 exhibit, the best as I can describe it, a vibration as it passes from about 2,200 up to about 2,400 RPM? It's not so much as an imbalance, but more of a rough or rubbing feeling. I notice is more so at light to mid throttle. I can feel it in the accelerator, but also slightly in the wheel. It's almost more of a buzzing feeling rather than a hard shudder.

So is this just mine or am I being really picky?

I also have a 3.5 EB, but I don't have the vibration you're mentioning at that RPM range. Occasionally, I'll feel an "almost stall" due to very low RPM's/early shift points, but that's a different topic and apparently by design anyhow for fuel economy.

I don't recall feeling anything at those RPM's, but I'll look for it when I drive it tomorrow.

I went back out and tried it in park/neutral to make sure it is the engine. It's not!
I had assumed since it was in a very specific RPM range it was, but it's not.

So, as I look through some of the older posts about iceboats + vibration, I see that as late as 2014, there was an issue with a separator plate (TSB 14-0134 Valve Body Separator Plate). I notice it light throttle, when accelerating. In those post that I read, it seems outside of occurring for some when shifting in/out of park, it also happens around 3rd and 4th gear and that sounds about right for mine as well.

What's the chance that the 2015s would suffer from this too?

I downloaded the TSB from here.
http://www.google.com/url?sa=t&rct=j...89744112,d.eXY

While it mentions a growl or buzz when shifting from park to drive, others who had their main control valve body seperator plate replaced did so because the buzzing feeling was being felt when driving at speed and at moderate acceleration.

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FORD:
2013-2014 Expedition, F-150, Mustang
LINCOLN:
2013-2014 Navigator

ISSUE
Some 2013-2014 Expedition, Navigator, F-150 and Mustang vehicles may exhibit a growl or buzz noise coming from the transmission that occurs when shifting from park to drive or park to reverse most often after the vehicle has been parked and then restarted.

ACTION
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE
1. Does the vehicle exhibit a growl or buzz while shifting from park to drive or park to reverse after start up?
a. No - this article does not apply. Refer to Workshop Manual (WSM), Section 307-01, for normal diagnostics.
b. Yes - proceed to Step 2.
2. Identify the transmission build date on the transmission identification tag. Refer to WSM, Section 307-01 Description and Operation. The date will be in DDMMYY format.
3. Replace the main control valve body seperator plate or main control assembly as required by the transmission build date. Refer to WSM, Section 307-01.
PART NUMBER PART NAME
CL3Z-7Z490-C Main Control Valve Body Separator Plate (Built Between 8/1/2013 - 2/28/2014)
FL3Z-7A100-E Main Control Assembly (Built Between 3/1/2014 - 3/15/2014)
FL3Z-7Z490-E Main Control Valve Body Separator Plate (Built Between 3/16/2014 - 7/14/2014)
XT-10-QLVC Motorcraft® MERCON®LV Automatic Transmission Fluid

OPERATION DESCRIPTION TIME
140134A 2013-2014 Mustang, F-150, Expedition, Navigator 6R80 Transmission:
Diagnose And Replace The Valve Body Separator Plate (Do Not Use With Any Other Labor Operations)
2.5 Hrs.

WARRANTY STATUS:
Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
Warranty/ESP coverage limits/policies/prior approvals are not altered by a TSB. Warranty/ESP coverage limits are
determined by the identified causal part and verified using the OASIS part coverage tool.

DEALER CODING
BASIC PART NO. CONDITION CODE
7Z490 01
6R80 - GROWL OR BUZZ NOISE WHILE SHIFTING FROM PARK TO DRIVE TSB 14-0134

NOTE: The information contained in Technical Service Bulletins is intended for use by trained, professional technicians with the knowledge, tools, and equipment to do the job properly and safely. It informs these technicians of conditions that may occur on some vehicles, or provides information that could assist in proper vehicle service.The procedures should not be performed by "do-it-yourselfers". Do not assume that a condition described affects your car or truck. Contact a Ford, Lincoln, or Mercury dealership to determine whether the bulletin applies to your vehicle. Warranty Policy and Extended Service Plan documentation determine Warranty and/or Extended Service Plan coverage unless stated otherwise in the TSB article.The information in this Technical Service Bulletin (TSB) was current at the time of printing. Ford Motor Company reserves the right to supercede this information with updates.The most recent information is available through Ford Motor Company's on-line technical resources. Copyright © 2014 Ford Motor Company Online Publication Date July 24, 2014 PAGE1

Is there a way to see about currently available TSB's?

My '14 is experiencing this. I think it's slightly getting worse...only 6k miles on her now. I would have thought the '15s wouldn't have this issue.

When you give it a lot of throttle, do you get the noise/vibration? I only notice it at part throttle...

I noticed my 2015 EB was doing something similar at about that same RPM but I also noticed it was when it was in 2nd-3rd gear. I haven't noticed it lately and I think it was the engine noise being generated from the stereo as the RPMs were winding up.