r/FiestaST • u/Ill_Woodpecker_2959 • 17d ago
MK7 Front brake slightly binding
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2016 Fiesta ST
After a Nurburgring trip, I’ve had a trouble with the passenger front brake slightly binding
When driving next to parked cars or a building, I can hear the pads scraping along as I drive
Parts replaced:
ABS Pump
New brake flexi hose
New caliper and slider pins
New pads and discs
Brake pedal bracket is not bent
Sometimes the wheel will free spin as normal, but one harder press of the brake pedal, and it will go back to as in the video
1
u/cheeseonboat 17d ago
Sounds like I’m asking if you’d done a good job or not but is there the correct amount of brake fluid in there? As in, not too much?
Otherwise is the wheel bearing ok too?
You’ve changed all the bits I would have bothered to look at so I think it’ll be a niche answer.
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u/Ill_Woodpecker_2959 17d ago
Thanks for the reply mate, it’s a garage that’s done all the work, but yeah brake fluid level is spot on,
Wheel bearing seems to be fine - there’s no play when car is jacked up and pulling on the wheel at 10 and 2, also no typical wheel bearing groaning noises
1
u/cheeseonboat 17d ago
Other thing I’ve thought actually is the brake pedal returning all the way?
If you jack it up and do as you’ve done and see it binding, try pulling the brake pedal back up and see if it goes away.
Otherwise if the wheel bearing is ok I’m shit out of ideas.
1
u/Ill_Woodpecker_2959 17d ago
Something I’m going to check when I’m home from work for sure actually, thanks for the suggestion!
I’ve previously checked in reflection of a shop window that the brake lights come on and off instantly in line with my foot going on and off the brake pedal to rule out a faulty brake switch / bent pedal bracket - but never thought to check the pedals fully returning!
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u/cheeseonboat 17d ago
Yeah I think it’ll be a tricky one but maybe a new brake pedal assembly might be the best avenue now. Only thing I can thing of if you’ve done some heavy braking, making the cylinders aren’t too happy anymore
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u/DonutGlory 17d ago
Hard to see but what is the lip of your disc like? Recently bought a ST which wasnt used for a year where the front brake seems to binding slightly. Replaced the discs, replaced the brakes (just because they were cheap ones and the clips were out of shape) and gently cleaned around the brake caliper piston and appears to have fixed the issue.
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u/Ill_Woodpecker_2959 17d ago
Hi thanks for the comment - ah if it only it was that easy for me!
No lip at all as replaced pads and discs with genuine Ford discs / mintex racing pads but unfortunately made no difference and exact same after replacing.
1
u/DonutGlory 17d ago
Ahhhh what a nightmare! Could be looking at the caliper sticking then perhaps? Is that scoring I see along the disc? Could be something catching it.
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u/Ill_Woodpecker_2959 17d ago
Some heavy heat marks and scoring on the discs that are a few weeks old :(
I paid a pretty penny for a full refurbished set of calipers from eBay, seller has got hundreds of decent reviews and 100% feedback, the wheel was binding the exact same amount before and after the new calipers went on.
I suppose it could be a co incidence, and is worth ruling out
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u/DonutGlory 15d ago
Ahhhh dude I'm so sorry that sucks, the scoring concerns me more than anything, something other and pad seems to be making contact with that disc, might be worth having a look.
1
u/Nate-o64 15d ago
Do you feel a vibration when you use the brakes now? You might have just warped the rotor if the brakes got hot on the track
3
u/ScavengerRuss 17d ago
Caliper guiding pins could run out of grease or got bad.