Warped Rotors

[rdlangston13]

I have a 2015 Expedition Limited 2wd and we pull our 2017 Moomba Mojo all over the place with it. The Mojo tipped the cat scales at 6,900 lbs and have 4 wheel disc surge brakes on the trailer. The brakes on the Expedition are warped all to hell and I’m tired of shaking while coming to a stop. Does anyone make beefier rotors than stock that handle the stresses of towing better?


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[craig sargood]

Powerstop makes a Z36 kit for mine (2000) I’m sure they have for yours, they are a bit expensive ($620 for mine), they come with rotors, pads, hardware, and new calipers, mine are ****** red( I need green and need to have powder coated), they do offer different colors on certain vehicles.

 

[Plati]

There are lots of knowledgeable people and companies who say that rotors don't warp. They say that there is a buildup of pad material on the rotor that makes it uneven. I'll defer that I really don't know what the majority of the problems are and if they are right … and I'm sure there are cases where certain castings end up warping. I also think the pad material buildup problem is real.

I had annoying brake pulsing on my 2014EL on a trip to Rockies last summer. Got home and installed new (good quality) front rotors and pads. Have not had a problem since. Maybe you just need new good quality pads & rotors?

 

[johnboneske]

Another cause of warped rotors are the lug nuts not being the same tightness... If/when rotating tires or getting new ones, shops always use those Damn torque sticks. Make them hand torque the lugs. Torque sticks can vary as much as 10%, so at 150 ft pounds that could be as much as 30.between lugs. Total BS. I torque My own, and haven't had an issue since.

 

[Trainmaster]

They say that there is a buildup of pad material on the rotor that makes it uneven.

I've read the same thing over and over when trying to get my Excursion brakes from pulsating a week after installing them. So I took them off, sanded them and still had the problem. Put a gauge on them, spun them and they sure were warped.

Switched to Motorcraft and DBA (Disk Brake Australia) castings and haven't had a problem with any of the trucks since then. There's some real junk out there, and that includes most of the "high end drilled and slotted" stuff.

 

[rdlangston13]

I've read the same thing over and over when trying to get my Excursion brakes from pulsating a week after installing them. So I took them off, sanded them and still had the problem. Put a gauge on them, spun them and they sure were warped.

Switched to Motorcraft and DBA (Disk Brake Australia) castings and haven't had a problem with any of the trucks since then. There's some real junk out there, and that includes most of the "high end drilled and slotted" stuff.

Motor craft rotors and DBA pads?


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[Black]

EBC

 

[ManUpOrShutUp]

There are tons of options out there for heavy duty rotors. I'm using AC Delco HD rotors. You could also get the service duty (police, etc) Motorcraft rotors.

 

[Trainmaster]

Motor craft rotors and DBA pads?

I've used rotors from both companies. For pads I use Motorcraft but have had very good luck with Hawk also. I've found every auto parts store brand to be useless junk.

 

[1955moose]

Rotors definitely do warp. If they didn't why would they put a runnout spec on every service manual in existence, since rotors made it on the seen in early 50's on foreign cars and one Chrysler in 1950. Lug tightness and evenness, stress from over heating etc, theirs a laundry list of what causes rotors to get beyond the factory specs. But as the others said, these days it's the cheap aftermarket metal. Remember what pop's said when you were a kid, you get what you pay for!

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[rdlangston13]

Rotors definitely do warp. If they didn't why would they put a runnout spec on every service manual in existence, since rotors made it on the seen in early 50's on foreign cars and one Chrysler in 1950. Lug tightness and evenness, stress from over heating etc, theirs a laundry list of what causes rotors to get beyond the factory specs. But as the others said, these days it's the cheap aftermarket metal. Remember what pop's said when you were a kid, you get what you pay for!

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Well the vehicle is not aftermarket. It’s currently still sporting the OEM brake components that came from Ford.


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[johnboneske]

I only use power stop rotors up front since you can get slotted and cross drilled ones. I use something OE in the back, and always use Centric ceramic pads all around. I have never had an issue since and never have to worry about stopping and brake fade.