Sponsored

Brake Job Terribleness!

OP
OP
Glocker

Glocker

Well-Known Member
First Name
John
Joined
Feb 11, 2020
Threads
97
Messages
2,700
Reaction score
8,427
Location
Boca Raton
Vehicle(s)
2019 Ford Ranger XLT FX4, 2014 Mustang GT
Vehicle Showcase
1
If thats the case your foot would have went to the floor at least once for the piston to take up that gap
Unless...

The inside pad on the passenger side was at the wear bar. If it fell out towards the end of its life, would I have felt that much more of pedal travel?
Sponsored

 

Mcssls

You have a bad caliper. Piston is seized or dragging. That’s the only way you get one pad worn out
 

Trigganometry

Well-Known Member
First Name
Rick
Joined
Dec 4, 2020
Threads
153
Messages
5,833
Reaction score
25,359
Location
Massachusetts
Vehicle(s)
20 XLT scab 301A/tow 4X4 magnetic w/sport blackout
Occupation
Engineering
Couple of observations after seeing your photos. Some comments I think are spot on. The discoloration of the rotor says parking brake heat. The other can also be because of excessive heat it might have bound up the sliders and or piston. The system is designed so that after releasing the brake the piston retracts slightly. If not working properly it will act the same as the parking brake. So hand touch the wheel faces after driving a bit and check how warm they are. It’s a good indicator if issue is still there.

Don’t forget to bed your brakes!
 

CO2Ranger

Well-Known Member
Joined
Apr 27, 2020
Threads
34
Messages
1,097
Reaction score
2,105
Location
Colorado
Vehicle(s)
2021 JLURD / Former: 2021 Ranger Lariat FX4
I'm thinking the premature wear could be from traction control and/or AdvanceTrak.

My FiST wore out the factory rears extremely fast. It was the first vehicle with the more advanced stability control that I daily drove. My wife's CX-5 has all that stuff but she drives about 6k miles a year, and not at all aggressive.

Back when I was autoXing we would avoid the parking brake in the paddock to keep from warping rotors by holding the hot pad on the rotor. With the additional rear brake engagements from the nannies we have, I wonder if parking brake use could be an additional factor.
This was my guess too. Trail control or traction control. Seems like it would take a helluva lot of flogging to get it to do that though.
 


CB750F

Well-Known Member
Joined
Aug 9, 2019
Threads
28
Messages
1,076
Reaction score
3,389
Location
Qc
Vehicle(s)
Subaru BRZ / SCAB Ranger XLT/FX4 & various motos
Occupation
Human
Couple of observations after seeing your photos. Some comments I think are spot on. The discoloration of the rotor says parking brake heat. The other can also be because of excessive heat it might have bound up the sliders and or piston. The system is designed so that after releasing the brake the piston retracts slightly. If not working properly it will act the same as the parking brake. So hand touch the wheel faces after driving a bit and check how warm they are. It’s a good indicator if issue is still there.

Don’t forget to bed your brakes!

I agree here, I just did that with my daughters car, drove around for 5 mins,
check the heat on the wheel, was hot, caliper was seized, 3 other corners were cold.
 

Floyd

Well-Known Member
Joined
Jan 6, 2019
Threads
38
Messages
2,064
Reaction score
3,132
Location
illinois
Vehicle(s)
'19 Ranger SCab,'16 Connect,'95 MustangGT,'50 Ford
Forgive my lazy attitude, but do all N/A Gen 5 Rangers use the same rear brakes? Same front brakes? 2WD and 4WD
 

Trigganometry

Well-Known Member
First Name
Rick
Joined
Dec 4, 2020
Threads
153
Messages
5,833
Reaction score
25,359
Location
Massachusetts
Vehicle(s)
20 XLT scab 301A/tow 4X4 magnetic w/sport blackout
Occupation
Engineering
Forgive my lazy attitude, but do all N/A Gen 5 Rangers use the same rear brakes? Same front brakes? 2WD and 4WD
Pretty sure the answer is yes. All flavors of Ranger use same brakes and rotor sizes.
 

Tom_C

Well-Known Member
First Name
Tom
Joined
Apr 17, 2021
Threads
35
Messages
1,972
Reaction score
4,390
Location
Virginia, USA
Vehicle(s)
2020 Ranger Lariat SuperCab FX4
Occupation
System Admin, Retired
Doesn't the truck throw a warning when you try to drive with the parking brake on? I could have sworn I recall my Ranger yelling at me one time when I accidentally forgot to take the parking brake off. But my memory isn't so great these days. Also probably why I forgot to take the parking brake off. :)

Edit: And also probably why I originally posted "break" 3 times instead of "brake". :)
Not sure, but just after I bought the truck I was waiting in line to get the inspection (I bought it out of state and needed my state inspection) I pulled forward 1 car length with the parking brake on and I didn't get any warning.
 

Porpoise Hork

Well-Known Member
First Name
Bret
Joined
Apr 28, 2020
Threads
19
Messages
1,316
Reaction score
2,366
Location
Houston
Vehicle(s)
2022 F150 XLT Powerboost FX4 302A Oxford White
Occupation
IT
Just a guess here. Are these bonded pads? Maybe the bonding failed and pad material fell out and you went right to metal on metal.
The bonding material did not let go. You can see that there is a small amount of material left on the pad. My money is on his wife leaving the paring brake on ignored the warnings the truck gave about it and drove around causing the brake to drag.
 

Big Blue

Well-Known Member
First Name
Lee
Joined
May 5, 2020
Threads
16
Messages
3,927
Reaction score
9,352
Location
Wisconsin
Vehicle(s)
2019 Ford Ranger XLT FX4 Supercrew lighting blue
Occupation
Retired mechanical designer
The bonding material did not let go. You can see that there is a small amount of material left on the pad. My money is on his wife leaving the paring brake on ignored the warnings the truck gave about it and drove around causing the brake to drag.
Why only one side? The parking brake should have killed both rears fairly evenly.
 
OP
OP
Glocker

Glocker

Well-Known Member
First Name
John
Joined
Feb 11, 2020
Threads
97
Messages
2,700
Reaction score
8,427
Location
Boca Raton
Vehicle(s)
2019 Ford Ranger XLT FX4, 2014 Mustang GT
Vehicle Showcase
1
There is some good advice here. Tomorrow I'll be driving my truck to work instead of my G-ride and when I get in, I'll check the wheel.
 

Porpoise Hork

Well-Known Member
First Name
Bret
Joined
Apr 28, 2020
Threads
19
Messages
1,316
Reaction score
2,366
Location
Houston
Vehicle(s)
2022 F150 XLT Powerboost FX4 302A Oxford White
Occupation
IT
Why only one side? The parking brake should have killed both rears fairly evenly.
Parking brake adjustment could have been off on one side allowing it to not drag. The side that was dragging could have heated up to also cause the caliper sliders to stick preventing the caliper from releasing. I have seen it happen when not enough/no anti-seize was used on the rear caliper pins.
 

Big Blue

Well-Known Member
First Name
Lee
Joined
May 5, 2020
Threads
16
Messages
3,927
Reaction score
9,352
Location
Wisconsin
Vehicle(s)
2019 Ford Ranger XLT FX4 Supercrew lighting blue
Occupation
Retired mechanical designer
Parking brake adjustment could have been off on one side allowing it to not drag. The side that was dragging could have heated up to also cause the caliper sliders to stick preventing the caliper from releasing. I have seen it happen when not enough/no anti-seize was used on the rear caliper pins.
A lot of "maybes", "could have beens" and "if thens"from everyone, including myself. We'll probably never know what really happened and why. Just lucky the OP found and was able to get parts to fix it before more damage was done, or something serious happened.
 

BassRanger

Well-Known Member
First Name
Al
Joined
Aug 19, 2020
Threads
2
Messages
361
Reaction score
973
Location
Oklahoma
Vehicle(s)
2020 Ranger Supercab STX, 2010 Mustang
Occupation
Goodyear
The pictures solidify my original hypothesis from the old thread. I can't say I've had this happen on the street, but I've definitely seen this a few times on my car. I've since switched to high temp grease on the slide pins and haven't had the problem since. Ford's rear floating calipers aren't exactly high technology. They get the job done, but they are a tad prone to issues.
I've had it happen a few times on my track car, stuck rear caliper slide pin will roast the inner pad. It will squeak and grind while driving and get worse on brake application. Outer pad will normally still have meat on them but the inner will be down to the backing plate.
Sponsored

 
 








Top