Admittedly I havent searched for an answer yet, but thought I would ask anyway. When just cruising down the road my throttle pedal pulsates. The engine doesnt change, just a weird feeling in the gas pedal. Any thoughts?

 

Well I finally read through the 35 page sticky up top. I dont not have any clunking sounds or loose feeling front end, but I do have the vibrations in the gas pedal. Sounds like Hummer and now GM have left us hanging.

 

I am a bit familiar with how these pedals work and have a question. Does it pulsate while the pedal arm is moving? And if so does it pulsate when lift off the gas pedal?
There are not many things that could cause this in the accelerator pedal, but it could still be possible. Let me know and I will see how I can help.

 

Quick diagnosis would be to make sure all other noises are isolated... If you have a CAI (I do) you can feel vibrations from it in the accelerator, also there's no play in the steering wheel correct? Vibrations from the tires can be felt in the steering wheel as well as in the pedals, but if there's no noise than I would think it would be a wheel bearing, you could get slight vibrations at lower speeds and at higher speeds it could feel worse, but I would also check the infamous cv boots just for hahaz