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let's play "The MYSTERY SQUEAK GAME"!!!
let's play "The MYSTERY SQUEAK GAME"!!!
For anyone that wants to be a contestant, offering answers or thoughts are FREE!!! The setup: 2002 base Boxster, just got 50k serpentine belt NEW rotors and pads all around New tires New shocks The MYSTERY SQUEAK!!! while moving - sounds like a very mad squirrel (or maybe metal scraping would be more logical) - only from rear right tire area - ONLY starts and continues above about 27-30 mph, stops when below - doesn't SEEM to change or get much faster above those speeds, maybe just a little faster gradually, but not obviously faster keeping pace with wheel spin rate - Engine being off, hard or soft breaking, and emergency brake have NO EFFECT on the noise - cool morning start or warmed up hot day have NO NOTICEABLE EFFECT on the noise - is SLIGHTLY affected during lane changes or slalom, like the pitch or something, just slightly - everything FEELS and drives fine Bonus Round info: - took to the shop and they heard but could not discern what it was, but everything is solid and safe to drive, they said. (I'll drop off there in a few weeks when I have time) They thought it needed the car weight on it to happen, didn't do it up on the rack. For those willing to play, there is no time limit, and questions are unlimited!! One thing I considered - and I am FAR from mechanic brained at all - is remounting the tire on the 5 screw thingys, at a different rotation, and maybe some nuts were tightened down too much warping the rotor? I don't know things. Any experiences or ideas appreciated. Thanks! |
New brakes you say? If this squeak started right after...probably your best place to start.
Look at the backing plate...might have been bent when working on the brakes. Sometimes a slight bend will allow it to rub the back or edge of the rotor just slightly, and as speed goes up, squeak goes away. OR...pads are not seated correctly. There's my 2 guesses. :cheers: |
Maybe wheel bearing or ABS sensor is rubbing the reluctor ring due to reluctor ring swelling over time. Mine was the latter. I thought it was the bearing but it wasn't. A .010" thick 3-d printed ABS sensor shim fixed mine. It made noise between about 12 mph and 40 mph.
https://cimg4.ibsrv.net/gimg/rennlis...286ddaa035.jpg https://www.youtube.com/watch?v=l5A0aPXYDVc |
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Is this something I could see if I pull the wheel off? I'll look into these parts. I want to learn all I can before I take it back and they say "your smuggulator is defraggled and needs pincerbinded to the whackamoler rotator" Thanks for your thoughts here. |
I'm with Seal on the dust plate. But I'd also check inside your drum brakes. I've heard of a spring or other hardware breaking off and rubbing against the drum.
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Pull the wheel off later and do some nosing around. |
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welp, one level of shim for mine didn't help. gonna try another level after lunch, but I suspect the thingy inside just grows to meet the challenge. Back to the mechanics if level two doesn't cut it.
Other thoughts?? |
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http://986forum.com/forums/uploads02...1629675453.jpg |
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Here's what my spacers look like: |
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Here's what my shim looks like: https://i.ebayimg.com/images/g/qQsAAOSwVwNg2F7S/s-l1600.jpg |
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