Question for the experts. Having a squeak when applying firm brake pressure. Sounds just like the pedal arm pivot needs lubricating except that it only makes the noise when moving. Press the pedal all day long when sitting still and nothing. Press it gently when moving and noting, but press firmly when moving at any speed and I get the squeak every time. It's either coming from under the dash or at the master. Can't hear any difference with the window down.

2018 5.0 Lariat 4X4.