Dude nobody knows why we are getting pedal vibrationg while driving
i know im just hoping that maybe someone thats new to the forum might see this topic and know the answer. :(
I had a similar issue whereby I felt a shimmy in the front end as I drove down the road. It would start at about 20 miles per hour and then continue with increased speed even up to highway speeds. I had the front end aligned and the tires rotated and balanced, but I still couldn't eliminate the issue. I could feel the shimmy in my seat, in the brake pedal, steering wheel...you could feel it in the car. What was even more strange was that when I drove over lane markers the car would jerk to the left or right. I took it to a Lexus expert here in Dallas, fearing the worst that I had ball joint issues since I had just replace the ball joints on another vehicle. The Lexus Expert drove the vehicle and thought it might be something loose in the steering. After putting the vehicle up on the rack and inspecting suspension and steering components...their verdict: TIRES. I had Pirelli P3000s and they said they were the cause (out or round or something defective in the tire). Even with rotating the tires I still had the same issue. I got my advice from another member - his diagnosis from the start was correct - it was the tires.
Sooo...I bought a new set of Michelins, Xalto Pilots, even had the ride match done. The problem was solved for me and the car runs smooth without an issue. Hope this helps.