[mabarker1]

I don’t know where you got that info but Brake Pads only get “wear and tear” when the Brakes are being used (by stepping on the pedal) OR one or part of one Caliper is “Dragging” that is mostly caused by what I call Vericose Brake Line in the flexible Brake Hose(s) close up inside causing the caliper to keep the Pads dragging on the Rotor (just like Vericose Veins). Now that pulsing you feel in the pedal is 1) the ABS Anti-Lock Brake System working like it should OR 2) the Brake Rotors are warped and the feeling is Brake Fluid feed back to the Pedal.

Brakes pulse because someone did a hard stop and kept their foot on the pedal. Doing this transfer pad material to the rotor where it stays and becomes a pulse.

Wrong- the cause is heavy braking several times and holding pressure by staying on the pedal Will create a Hot Spot on the Rotor and Warp the Rotor. This can also make the Steering Wheel shake. Brake Pads leave dust that will collect around the Calipers and the inside of the Wheels but where the Pads are in contact will be clean but there’s dust all around.

I have done Thousands of Brake System repairs over the last 40+ years on anything from VW Bugs, Chevrolet, Jaguars to Rolls Royce and Utility ,Cattle Trailers, FedEx Vans and Trucks on Vehicles from the early 1900’s to 2018.

I spent 18+ years selling Auto & Truck Parts and another 16 turning wrenches for a Living.

[Malsua]

Wrong- the cause is heavy braking several times and holding pressure by staying on the pedal Will create a Hot Spot on the Rotor and Warp the Rotor

Passenger vehicle rotors these days(and for the last 50 years) are stress relieved and do not "heat warp". Don't take my word for it. Spend the next couple hours learning about what it is that causes brakes to pulse. When you realize it's because pad material is transferring to the rotor, a light bulb will go off. Every time you stood next to a lathe cutting a rotor, didn't it ever make you wonder why the center of the rotor ran perfectly true yet the tool was only hitting at one spot? Check the runout on the center of the rotor, notice that the dial indicator isn't moving. Did the Rotor ever turn like wheel on cart a that Our Gang used on the Little Rascals? No it didn't, because the rotor wasn't warped in the slightest.

If you're doing appeal to authority, I have done brake jobs for the past 30+ years as well. Brake jobs alone probably paid for 10% of my college tuition.

I have not worked on anything with air brakes so if they warp after dragging for hundreds of miles, I wouldn't be surprised. Heavy duty is a different game. Cars though? It's pad material from hot components that bond to the rotor.

Can rotors break, rust, or get damaged and pulsate? Sure. That's not what's going on in an otherwise normal rotor that pulses.