After I replaced my rotors, the front driver side wheel makes the most annoying high pitch noise (like scratching a chalk board), at first it wasn’t so bad, I sprayed some WD-40 in there and it solved the problem form about 2-3 days, now it got much louder.
Noise...not effected by braking, or steering left and rightnot effected by acceleration or decelerationmy alignment is fine, no vibrations what so ever.
Do I need to grease the wheel bearing, what should I use?
High Pitch Noise from wheel
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2003 Audi A6 2.7T (stock) - Contact:
Where precisely did you spray WD-40?
During the work, did you accidentally bend the backing plate to where it touches the rotor?(silly, but it does happen)
Did you replace with an aftermarket rotor? OEM?
What is your experience with braking systems? The WD-40 bit scares me... maybe the wording used is confusing me, but it sounds like you sprayed the WD-40 directly onto your rotor/friction material.. very bad idea.
Perhaps the reinstall of the caliper on that side is not exact...?
I'd take 'er apart again, and look for signs of scraping on all surfaces.
During the work, did you accidentally bend the backing plate to where it touches the rotor?(silly, but it does happen)
Did you replace with an aftermarket rotor? OEM?
What is your experience with braking systems? The WD-40 bit scares me... maybe the wording used is confusing me, but it sounds like you sprayed the WD-40 directly onto your rotor/friction material.. very bad idea.
Perhaps the reinstall of the caliper on that side is not exact...?
I'd take 'er apart again, and look for signs of scraping on all surfaces.
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Checkered-Member
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2003 Audi A6 2.7T (stock) - Contact:
SmithSR wrote:Where precisely did you spray WD-40?
During the work, did you accidentally bend the backing plate to where it touches the rotor?(silly, but it does happen)
Did you replace with an aftermarket rotor? OEM?
What is your experience with braking systems? The WD-40 bit scares me... maybe the wording used is confusing me, but it sounds like you sprayed the WD-40 directly onto your rotor/friction material.. very bad idea.
Perhaps the reinstall of the caliper on that side is not exact...?
I'd take 'er apart again, and look for signs of scraping on all surfaces.
_______________________________________________On the wheel bearing (the very middle of the wheel)
I did bend it back a little, but I will double check again
Aftermarket rotors
First time doing it, no I didn’t spray the rotors
Hmm…might be will check again
Scrapping surfaces, got it___________________________________
Also the squealing only happens after 15 min of driving when the wheels/brakes get warm
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Checkered-Member
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2003 Audi A6 2.7T (stock) - Contact:
pop the caliper off and see if the top of the rotor is rubbing on the insdie of the caliper, you may have a brake rotor that is just a little bit too large for the caliper(this happened on a carolla once at my shop..)
also, some pads require the use of the old pad shims, other pads come with new ones, or "omlded on" shims, if you got ones that needed shims, did you put the shims back on?
-chet
also, some pads require the use of the old pad shims, other pads come with new ones, or "omlded on" shims, if you got ones that needed shims, did you put the shims back on?
-chet