Vibration thru gas pedal

[Pedaldude]

...that he said were worse than mine...engineering is working on it....he has no way of knowing. Refused to even put vibration sensors on the vehicle or put it on a lift until they heard from ford...

Someone needs to make the dealership version of all those YouTube relationship advice “phrases that gaslighters use.” videos.

100% the “I’ve seen worse than yours.” bullshit would be near the top and is exactly what my selling dealer’s disservice manager said while sandbagging me on my door alignment issue that another dealership fixed in less than 15 minutes and didn’t even write it up, explaining it wasn’t worth filling out the paperwork to send to Ford.

It’s the 21st century, does there really need to be some byzantine bureaucratic paper trail that needs to be delegated to dealership employees that do nothing other than busywork all day? It’s maddening.

My pedal issue started after around 1,000 miles and wasn’t present beforehand. So there has to be some form of vibration that builds resulting from the changing tolerances during the break-in period.

I plan on bringing my truck in sometime soon and piling on all the various issues that have arisen.

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[agyc1979]

I couldn't agree more with the previous two posts. I, too, spent 55k on my truck and Ford has done nothing to fix the issue. My dealer won't even acknowledge that there is an issue. I am beyond disappointed and my only guess is that Ford is waiting for vehicles' warranties to expire so that the customer has to cover the repair.

 

[mryan]

$96,000 for a Limited here in Canada and this really sucks. They changed my plugs last week, no difference. Torque converter on order to try next. So disappointing, 3 previous Lariat’s with no issue.

 

[Pedaldude]

...They changed my plugs last week, no difference. Torque converter on order to try next...

Sounds like they’re just throwing parts at it. Having a séance with a ouija board to ask Henry Ford’s ghost would probably be just as effective.

NVH issues are some of the hardest to diagnose and sometimes a novel solution is required. Just changing parts won’t solve it, even if it’s caused by a certain part. You need to change the fundamental relationship between parts that are interacting in an undesirable way.

It could involve changing the way the pedal is mounted, distance between bolts; or an entirely new pedal assembly designed to tune out the undesirable frequencies that are causing it to vibrate.

The cause could be as simple as the accelerator return spring resonating inside the housing and shaking the pedal. Add or subtract a few coils and its natural frequency is moved into a range unaffected by all the vibrations in the vehicle.

It could be the pedal itself vibrating, since it’s relatively lightweight, stiff and just hanging out there like a key on a finger piano.

Take a plastic fork and hold the head against the edge of a kitchen cabinet with the handle hanging off with your thumb. With the other hand, take a finger and flick the end of the handle and it makes a tone like a xylophone. Alter the amount of handle hanging out and the pitch changes. Take the utensil and simply hold it in the air with your hand and do the same thing, no tone is heard. The plastic utensil is similar to the gas pedal, the aluminum frame is like the stiff hollow cabinet. The bolts holding the pedal assembly is performing the same function as your thumb; holding it stiffly against the frame. The only difference is in this case, it’s the vibration of the frame causing the resonance in the plastic which is felt as grinding in the pedal. Just like the sympathetic strings on a sitar.

There are some pretty sophisticated tools that are coming down in price to help figure out the problem. Many dealerships have them but I am also guessing that they aren’t too excited to pay their technicians to perform science experiments just the same way that I’m not terribly motivated to spend money doing Ford’s job for them.

 

[Pedaldude]

For privacy reasons, could you please delete this public message containing your VIN.

Should prolly delete the quote containing the VIN you asked to delete too!

 

[mryan]

I am not sure that I am in the correct section any longer, with my 21 Limited the vibration at the RPM and speed in attached can be felt in the whole truck, not just the gas pedal. This is with no load or trailer. Phone almost vibrates of phone holder. Nothing in steering wheel. Canada does not have a lemon law or this thing would be gone. I kind of hope something does let go in a major way, then I can sue Ford for negligence, arrogance and whatever else comes to mind for not dealing with this issue.

 

[Dadofjax]

I am not sure that I am in the correct section any longer, with my 21 Limited the vibration at the RPM and speed in attached can be felt in the whole truck, not just the gas pedal. This is with no load or trailer. Phone almost vibrates of phone holder. Nothing in steering wheel. Canada does not have a lemon law or this thing would be gone. I kind of hope something does let go in a major way, then I can sue Ford for negligence, arrogance and whatever else comes to mind for not dealing with this issue.

You might want to look at the transmission shudder thread (approaching 50k views).

The problem with this issue and the transmission shudder is the dealer technician are incompetent and have no idea how to troubleshoot these days. If a computer tells them to replace part A they can find part A and turn a screw driver but if a computer doesn't tell them something is wrong "it's normal".

 

[James3]

Hey all, just picked up a 2022 F-150 Lariat 2.7 this week (less than 150 miles) and well, yes I feel significant vibrations through the gas pedal, and maybe even the steering wheel. Sadly, it seems there is no definitive cause of this issue, nor a definitive solution.

I will likely bring this into dealer service, but any suggestions on what I should ask them to focus on? Seems the driveshaft may be a good place to start. Thanks!

 

[Mtnman1]

I couldn't agree more with the previous two posts. I, too, spent 55k on my truck and Ford has done nothing to fix the issue. My dealer won't even acknowledge that there is an issue. I am beyond disappointed and my only guess is that Ford is waiting for vehicles' warranties to expire so that the customer has to cover the repair.

Take it to a better dealer.

 

[Hockeymandan13]

Hey all, just picked up a 2022 F-150 Lariat 2.7 this week (less than 150 miles) and well, yes I feel significant vibrations through the gas pedal, and maybe even the steering wheel. Sadly, it seems there is no definitive cause of this issue, nor a definitive solution.

I will likely bring this into dealer service, but any suggestions on what I should ask them to focus on? Seems the driveshaft may be a good place to start. Thanks!

My dealer put rubber washers between the pedal assembly and the firewall and it helps a fair amount. No solution I have seen yet. It's something rotatioal thats carrying through the firewall. Doesn't narrow it down by much. I'm leaning towards driveshaft and transmission or t case as those are the closest source. At this point who knows. Rubber washers make it livable.

 

[BADKITTY]

Just picked up my XLT two days ago. having the exact same issue. Mine is a 2.7 XLT built in Dearborn Facility. It is not speed related, the steering wheel is fine, brake pad is fine. I thought it has something to do with the engine, but after seeing people having same issue on all engines, I am leaning towards the transmission issue. And also I have noticed that a lot of times the gear just jumped from 1 to 3, skipped the 2nd gear.

 

[BADKITTY]

You might want to look at the transmission shudder thread (approaching 50k views).

The problem with this issue and the transmission shudder is the dealer technician are incompetent and have no idea how to troubleshoot these days. If a computer tells them to replace part A they can find part A and turn a screw driver but if a computer doesn't tell them something is wrong "it's normal".

Would you post the link to that transmission shudder thread? Thank you.

 

[CarbonizedRCSB]

I have an appointment on the 3rd for the vibration/roaring at pretty much any speed and a whine when keeping highway speeds...as soon as I let off the gas, the whine goes away.

 

[Dadofjax]

Would you post the link to that transmission shudder thread? Thank you.

https://www.f150gen14.com/forum/threads/transmission-shudder.2312/

 

[Golf17]

My dealer put rubber washers between the pedal assembly and the firewall and it helps a fair amount. No solution I have seen yet. It's something rotatioal thats carrying through the firewall. Doesn't narrow it down by much. I'm leaning towards driveshaft and transmission or t case as those are the closest source. At this point who knows. Rubber washers make it livable.

Hey Hockeyman,
Any chance you have any more details on what your Dealer did, or if they followed a sanctioned Ford remedy for those rubber washers? I’ve only got about 10,000 miles on my 21 f150 tremor, but the vibration has been getting worse the last few thousand miles and I had it at the dealer today, but they said they were no issues found. Thanks!

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