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Old 02-15-2014, 12:27 PM   #1
MilanN
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Brake , Abs.

I have this problem 2-3 weeks, when i brake in curve generally (sometimes on straight road) i feel that the abs is working for no reason until i press the pedal several times and it's gone. Why is this happening?
Also when driving in curve at low speed i have some low pitch squeaking sound.

Should i change anything immediately? Help!

I drive year 2000 1.8 Tddi.



Last edited by MilanN; 02-15-2014 at 01:30 PM.
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Old 02-15-2014, 09:49 PM   #2
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Put the car up one corner at a time and grab the tire @ 3 & 9 o'clock: shake the wheel/tire and see if the thing shakes around like it's not bolted in tight. Also try @ 12 & 6 o'clock, too.

Mine was doing that, so I flushed the braking system 6 times and it didn't go away. I even used the Ford IDS system to look at wheel speed sensor signals. All that did was point to the wheel that the axle nut had become loose on... of course I didn't figure it out until parking it and messing with it a week later out of desperation. And when that symptom crept up again, I found out the rear on the opposite side had done the same thing.

http://www.youtube.com/watch?v=SpiUUt1tvWY

The wheel speed sensors use a calibrated air-gap and teeth to do it's "math"; if the axle nut is indeed come loose, it's allowing excessive endplay (a.k.a. too much movement/outside it's calibrated specs) so the ABS kicks on to mitigate what it's perceiving as a traction loss... You may also have a speed sensor issue or broken tone ring. The easiest home-test you can do is put it in the air and shake those wheels to check for endplay!

BTW; my lugs were torqued properly when I did that video.
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Old 02-17-2014, 09:16 AM   #3
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Thanks Mile30, I'll check that out, I would never guess that it is axle nut doing all that (like you explained).
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Old 03-05-2014, 09:55 AM   #4
MilanN
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Hey, Mile30 thank you bro, I've done that and now the problem is gone, tell me now why the right wheel where I bolted it tight, now squeaks like a mad when i drive in corners? (a lot squeaking)
Is this normal and it will disappear? Do i need to put WD40 on the big nut? Do i need new hub and bearing?
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Old 03-05-2014, 01:18 PM   #5
MilanN
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They suggested me to change the brake pads because they've been into wrong position while the wheel was loosen (and now that's why they squeak), what you guys think?
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