Random vibration in gas pedal

[gloch]

I am getting occasional vibrations from the gas pedal on my V8 4Runner. Has anyone else experienced this?

 

[Kenrunner]

I am getting occasional vibrations from the gas pedal on my V8 4Runner. Has anyone else experienced this?

Can you be a little more specific? As in when does it vibrate? Is it upon acceleration or decel? High/low/idle speed? I’m trying to think about the series of connections from the pedal to the throttle body, or if anything’s making contact with the mechanism or the firewall. It’s odd though.

 

[gloch]

Can you be a little more specific? As in when does it vibrate? Is it upon acceleration or decel? High/low/idle speed? I’m trying to think about the series of connections from the pedal to the throttle body, or if anything’s making contact with the mechanism or the firewall. It’s odd though.

On acceleration. As I am accelerating on the highway or holding a steady speed without cruise.

 

[Ida4runner]

Any vibration in steering wheel at the same time?
Your gas pedal is electronic, there is no linkage connected to the engine so if you're feeling a vibration in the pedal I would think it's coming off the floorboard.

 

[gloch]

Any vibration in steering wheel at the same time?
Your gas pedal is electronic, there is no linkage connected to the engine so if you're feeling a vibration in the pedal I would think it's coming off the floorboard.

Interesting. I'll have to pay attention to the other foot as well. I just wanted to check if anyone else has experienced this.

 

[Ida4runner]

Check to see if it's coming through the steering wheel for possible CV issues if AWD, check to see if it happens at certain RPMs, also if it goes away when you let off the gas. Is a V8 or V6?

 

[gloch]

Check to see if it's coming through the steering wheel for possible CV issues if AWD, check to see if it happens at certain RPMs, also if it goes away when you let off the gas. Is a V8 or V6?

Definitely felt in the foot and not steering. V8.

 

[MacRendar]

Mine does this, I think it's my cracked exhaust manifold resonating at certain rpm ranges. As the engine heats up both that symptom and the noise improve and on a hot enough day more or less disappear entirely. But like the above poster said, anything that could cause vibration in the floorboards could cause it. Maybe even play in motor mounts?


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[gloch]

Mine does this, I think it's my cracked exhaust manifold resonating at certain rpm ranges. As the engine heats up both that symptom and the noise improve and on a hot enough day more or less disappear entirely. But like the above poster said, anything that could cause vibration in the floorboards could cause it. Maybe even play in motor mounts?

Okay. That makes sense. I have the ticking manifold too so maybe that's it?

 

[MacRendar]

Okay. That makes sense. I have the ticking manifold too so maybe that's it?

Hard to say, but they seem to be directly correlated to each other in my experience in the 2000 miles I've put on my 4 runner since buying it. I've never driven one that wasn't cracked so I couldn't compare. Maybe some guys that fixed their headers can comment if they had the same thing. It's relatively minor, imo, but I immediately noticed it because of how weird it feels compared to the pedal in my MDX. Then I found out it's an electric pedal.

FWIW I feel the vibrations even stronger on my floorboards with my feet planted flat. Maybe the hard weather techs exacerbate this. It's annoying but I don't think it's hurting anything. I wonder if we could somehow dampen the pedal ... Probably not worth the effort and may cause safety concerns... Nah I'll just keep ignoring it

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