Vibration thru gas pedal

[BUDXR7]

Uhoh.
Now you might be letting a "what if" steal your joy?

At least let the truck "breakin" for a couple thousand miles?
Also, what gear are you in 55-60, as you mentioned?

Try the truck in Sport Mode (just drive it normal. You don't HAVE to drive sporty just because you chose a different shift strategy) Now, is 55-60 the same feel? Because the only real difference is that you are in a different gear ratio and rpm at the same speed.

Just curious.

I need to do some more observation. I didn’t even think it was an issue until I saw this thread. The only thing I know as definitive is it was not constant in that 55-65 speed range. It was intermittent, seemed to be a function of drivetrain load. I’d like to observe it while watching the electric/charging/hybrid/ice screen and note the gear.

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[Snakebitten]

I need to do some more observation. I didn’t even think it was an issue until I saw this thread. The only thing I know as definitive is it was not constant in that 55-65 speed range. It was intermittent, seemed to be a function of drivetrain load. I’d like to observe it while watching the electric/charging/hybrid/ice screen and note the gear.

I hope you find that it is in fact a combination of the 10r80 transmission wearing in its clutches, as well as populating it's adaptive table values, (so called learning) AND a low rpm/tall gear ratio feedback. (borderline lugging, if you will)

Keep in mind that 8th gear is already overdrive on this transmission. And the manufacturer is aggressively bent towards the CAFE mandates at your peril of ownership experience.

I'm really just trying to say not to automatically conclude that there is anything wrong with your brand new truck until it gets a chance to settle in a bit and YOU get to know all the variables that are available to you as well.
If someone purchases one of these amazing vehicles and never do anything but start it up and drive it in default mode using the least expensive fuel, they might never discover the versatility that is engineered into this drivetrain.

That's OK, of course. But I believe the truck will be very much under appreciated. Even worse, dissatisfied.

 

[BUDXR7]

I hope you find that it is in fact a combination of the 10r80 transmission wearing in its clutches, as well as populating it's adaptive table values, (so called learning) AND a low rpm/tall gear ratio feedback. (borderline lugging, if you will)

Keep in mind that 8th gear is already overdrive on this transmission. And the manufacturer is aggressively bent towards the CAFE mandates at your peril of ownership experience.

I'm really just trying to say not to automatically conclude that there is anything wrong with your brand new truck until it gets a chance to settle in a bit and YOU get to know all the variables that are available to you as well.
If someone purchases one of these amazing vehicles and never do anything but start it up and drive it in default mode using the least expensive fuel, they might never discover the versatility that is engineered into this drivetrain.

That's OK, of course. But I believe the truck will be very much under appreciated. Even worse, dissatisfied.

Yeah, not panicking. I haven’t even laid into it yet.

 

[vinnie45acp]

Yeah there's definitely some very different issues being discussed in this thread. If it disappears in cold weather, it could be a tolerances issue.

I finally found a good road last night and did some further testing. I noticed the 50-60ish vibrations actually were present in 7th gear too and don't seem as dependent on the engine load or rpms as originally thought. Its most noticeable at tip in, but thats just because there's less interference. So now I'm thinking this is actually more likely driveline related. Bear in mind my flat rear blocks are removed. I'll be putting the blocks back in today to test, but ideally would have a light shim to work with. The reason I didn't think it was pinion angle related was removing the flat blocks doesn't change angle, there is no vibration at any speed while off throttle (unlike previous pinion angle issues I've experienced) and removing blocks means less torque leverage on these frankly weak springs.

Can anyone recommended a 1 degree shim? I saw the belltech offering, but I really don't think that fits our trucks based on the pics. It seems like they're the only game for 1 degree shims.

Edit: reinstalled blocks and its not perfect, but its definitely a little better. Ordered some 1 degree belltech shims and hopefully they fit the holes. Kind of annoying at this point.

Did you ever install the shims? If so did it help. I have same issue, removed blocks, noticed about a .75-1 degree shift in pinion angle, a mechanic told me it should hurt anything, but I’m having the same issue with vibrations coming through gas peddle around 45-60 and really prevalent In 7th gear.

 

[RyanRA]

I'm really just trying to say not to automatically conclude that there is anything wrong with your brand new truck until it gets a chance to settle in a bit and YOU get to know all the variables that are available to you as well.
If someone purchases one of these amazing vehicles and never do anything but start it up and drive it in default mode using the least expensive fuel, they might never discover the versatility that is engineered into this drivetrain.

That's OK, of course. But I believe the truck will be very much under appreciated. Even worse, dissatisfied.

Thanks for this ^^^^^; are you the forum's therapist? : )

I, too, was fixated on this intermittent pedal vibration...

 

[Area_51]

For what it’s worth, my truck just threw code [P0A1E Starter/Generator Control Module] with a Powertrain Malfunction in FordPass while waiting in the Tim Hortons drive-thru this morning.

Hasn’t gone into EV mode at all this week, but I assumed it was downloading software updates. It did download and install 6.3.0 and then 6.4.0 successfully.

Yesterday, I noticed that the energy flow screen looked odd while sitting at a light. Auto-hold was keeping it stopped, but it was acting like it wanted to take off. The green regen bar on EV Coach seems to be sporadic in how much it can capture.

Oddly enough, the pedal is now smooooth as silk, and there are 0 misfires. Truck actually runs “peppier" despite the wrench light. Gonna take it into the dealer tomorrow to get it checked out.

Very interesting!

Since your dielectric grease "fix," what have you observed in the engine and the pedal vibration over the last couple of months? Do you feel like your fix solved anything semi-permanently?

 

[Area_51]

Thanks for the reply!

Hey @Area_51 -

Just logging back in after the holidays - hope things were relaxing for ya!

I have not taken my truck into the dealer for anything just yet, but I plan to in a week or two to get some recalls taken care of.

For my dialectric grease “fix,” the truck seems to be driving the same since I did that. I’m also not sure if a software update fixed something as well, the truck seems to be driving better since 6.4.0 downloaded. The grease seemed to allow me to pinpoint the exact speeds that I’m still feeling some vibrations at, 55 and 74 exactly. I still feel like this issue is temperature related, so possibly low fluid in the transfer case/front diff/trans. Have not checked misfires in a minute.

The “Service Vehicle Soon” message has not returned, but I have noticed that the “READY” light disappears from my cluster when i’m braking for the first time when driving the truck. Goes into EV mode just fine, and READY comes back after I accelerate from the stop. Only does it once on the first drive. I’m thinking a software glitch on that front.

I’ve been doing some home renovations and went to grab a 4x8 sheet of drywall from Homie D. When I got back, I noticed my tonneau cover drain plugs popped out. I trimmed the rubber tubing that drains between the truck and truck bed and that seemed to help even more. Strange...

Either way, I’m buying an ESP for this thing in the spring and will continue to monitor any vibrations and just drive the thing. As of right now, the truck has been driving much better. Still love everything about it!

Good to hear! I definitely think the vibrations may be (at least partly) caused by something physical other than the engine/transmission.

After going a month or so without washing my truck, observed pretty consistent throttle vibration on a 1.5hr drive home from the airport. The next day, I took it through a pretty thorough car wash and... to my surprise, it seems to have lessened the pedal vibrations by 40-60%. Thinking maybe some mud or road stuff stuck somewhere could have be contributing to this feeling.

My truck will be going in for its first oil change soon, but I'm hesitant to mention anything to the dealer after hearing so many "that's just the way the truck was designed" comments regarding throttle pedal vibrations.

Anyways, enjoying my truck and our discourse here. Until it's solved for good!

 

[WhiteLightningnshitshadow]

Did you ever install the shims? If so did it help. I have same issue, removed blocks, noticed about a .75-1 degree shift in pinion angle, a mechanic told me it should hurt anything, but I’m having the same issue with vibrations coming through gas peddle around 45-60 and really prevalent In 7th gear.

Nope didn't help. Also removed the coils and cleaned them. No change. Still have a 50-60ish mph vibration in several gears.

 

[Jakeo32]

My truck has had a pedal vibration for over a year now. (2021 Lariat 5.0, 4x4). It got better in winter a little it seemed and now with warm weather back it’s back pretty bad. Mine is typically over like 20 MPH and today I could almost hear some type of rhythmic rubbing as my foot sits on the pedal while coasting. Tires are decently worn but really not bad at all and evenly worn. I don’t know what the hell it is anymore but I really doubt it’s spark plugs for me. This seems like it has to do with the movement of the vehicle.

 

[scott011422]

I’m about 95% sure mine is going to be tire noise. Can’t see anything with a scan tool.

 

[Jakeo32]

I’m about 95% sure mine is going to be tire noise. Can’t see anything with a scan tool.

How would you describe yours? Is it similar to what I’m experiencing? The rythmic vibration I could faintly hear on mine is what has me wondering

 

[richardrocks]

How would you describe yours? Is it similar to what I’m experiencing? The rythmic vibration I could faintly hear on mine is what has me wondering

Friends, I’m sorry to be the bearer of bad news, and this is totally unhelpful, but I went down every theory / fix rabbit hole and I’m telling you in all honesty, the only way to move on from this issue is to buy another brand truck like I did. Sadly, it was my first and last Ford and I took a bath on the trade in… but it was worth it.

 

[Popplemer]

Friends, I’m sorry to be the bearer of bad news, and this is totally unhelpful, but I went down every theory / fix rabbit hole and I’m telling you in all honesty, the only way to move on from this issue is to buy another brand truck like I did. Sadly, it was my first and last Ford and I took a bath on the trade in… but it was worth it.

Funny, I have a very similar truck to your build and I have had no issues whatsoever. I know some have speculated that air entering by the wiper well gets caught up in the firewall and causes the vibration. I wonder if adding dynamat to the inside firewall might be a worthwhile last ditch effort to reduce the vibration?

 

[Snakebitten]

My personal opinion is that the source of NVH on one F150 can differ from the next, even if both were described as vibration in the foot pedal.

And there are so many components that make up these assemblies, it could be very difficult to trace it down. But if someone was diligent enough, there IS an explanation.

Sadly, at some point sometimes throwing in the towel is the more appealing devil.
I'm too stubborn, usually.

I tell myself to look at it the other way..... There's a FINITE number of bolts/pieces to the pedal. Heck, it's even fly by wire. So there's no longer rods/cables physically connected to the engine itself. So at least that's eliminated from the equation.

 

[Jakeo32]

Just to update the thread my truck has had pedal vibrations for over a year now. Better in the winter but was still there. Over the past week it has evolved into a full blown vibration you can feel/hear outside of the accelerator pedal, I also feel like my steering is mildly more sloppy at low speeds. I have an appointment with my local Ford dealer for Friday to get it looked at. It’s been duplicating the issue for a few days in a row now so my hope is they can replicate it. My truck is just outside the 3 year 36k warranty so honestly hoping it’s drivetrain related and gets repaired under the power train warranty. Regardless I told Ford about the vibrations a year ago when it was in for another issue, so hopefully they take care of me regardless. This truck has definitely had some issues.

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