Hello, I have an 06 Acura TL with 164k miles. Recently I have been feeling a slight vibration at the pedal only between 60 to 80mph. Car wheels have been balanced (hunter road force) and aligned. Some more info that might help with this but not sure if related. Car also has aftermarket motor mounts, I do have a vibration at idle but I dont mind it but not sure if it is related. Any help or routing me in the right direction would be much appreciated. Thanks...

edit: Axles are stock original but visually seem fine. I do have warped warped rotors which I am aware of but again not sure if this can be related.

 

so the car is smooth, and the steering wheel is smooth?
You ONLY feel it through the gas pedal? At what speed? 120?
I don't know, man...you can drive yourself nuts chasing that sort of thing.
Avoid doing what causes it. I'm sure rotors and axles could be...I had a weird
wiggle feeling when accelerating on my TL at 34K miles back in the day...ended
up being the axles didn't like the new angle after I lowered the car. Then
I chased a high speed vibration all over town...ended up being a bad balance
machine and tech...

So many variables. Just don't go that speed.

 

Yes, the car is smooth overall just a slight pedal vibration between 60-80mph. No steering wheel vibration or anything. The vibration is not too bad where its really bothering me I guess I will just ignore it for now. Maybe just look into getting axles replaced since they have over 160k miles on them.

 

If it's not felt in the steering wheel, i'd look in the rear. Wheel balance, rotors, etc.

 

is it during acceleration only? Have your engine mounts neutralized should help with vibrations at a stop. Also check yoru trans mounts.

 

I have a feeling might be my rotors...

I never replaced them, will look into replacing the trans mounts.