I recently bought a MV50 air compressor and master cylinder mounting bracket from another forum member. I mounted it last night and everything looked great. When I took the Jeep out today, I noticed a vibration in my brake pedal. I checked the two nuts and they are tight. Is this normal?

 

I'm having the same problem after installing 33" Duratracs. Going over imperfections in the road, my brake pedal vibrates violently making noise in the process.

My pedal has alot of side play, I was wondering if I could shim it up.

 

Finally someone has the same issue as me. That pedal vibration is driving me crazy. I even hold my foot under it so it stops. Is there a fix? The dealer says its the design and its normal?

 

I have the same vibration after installing my compressor also. I think I am going to tied the front of the mount with a plate to something in the engine bay. I'm hoping this helps because the vibration is pretty annoying.

 

I know it is an old thread, but maybe my experience will be helpful to someone sometime.

I also had vibration in my brake pedal after I've installed a compressor with the brake booster mount.
Even felt a drag when pushing the gas pedal.

The mounting plate for the compressor was touching the brakelines coming from the master cylinder.
After bending the brakelines away from the mounting plate everything was fine.