The round cylindrical brake pressure unit under the hood, near the firewall on my '01 non-AHC rig makes a fair amount of buzzing noise.
I notice it most when I first start the vehicle and then sometimes at lower speeds when applying the brakes.
What function does this unit perform?
Is it normal for it to buzz/vibrate at random intervals?
I notice it most when I first start the vehicle and then sometimes at lower speeds when applying the brakes.
What function does this unit perform?
Is it normal for it to buzz/vibrate at random intervals?