My brake pedal vibrates at idle.

So....

I have developed a new vibration/buzz in my brake pedal. It only occurs while stopped, at idle, with the AC on. If I turn the AC off it goes away.

No changes have been made to the truck for years now.

I googled, only thing I found could be a leak at the booster? Is that even a thing of these trucks?

What is it?

 

^^

 

Damn you guys suck. Lol

 

Try bleeding the brakes

 

I have the same thing 2005 base. Quad cab 4x4.

 

The Engine bumps the RPM up when the AC is ON.
Try turning the AC Off, then raise the rpm up 200-300, see if you get the same results.

Also, does it do this in gear, in Neutral, or in Park?

 

I mainly notice it in gear. Sitting at stoplights with my foot on the brakes. Usually not in park without for on the brakes.

 

Mine vibrates a little at idle. I used to shift to neutral or park at stop lights sometimes. Never really bothered me too bad so I never tried to fix it. I always assumed engine mounts but that's just a guess.