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Old 06-14-2009, 02:04 PM   #7 (permalink)
surferpkt
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Join Date: Apr 2007
Location: Sarasota, FL.
Posts: 124
Quote:
Originally Posted by 40mmBrakes View Post
Sorry to ask, but are you sure it is not the pedal assembly? Perhaps the pivot point has a bad bushing? That would explain why it happens without the car moving.

You say the master cylinder is full; if the pads are not new, it should not be entirely full.

Once the pads contact the rotor there really isn't any more motion, only pressure increase...
I'm in total agreeance with you, which is why I'm perplexed. The noise definately appears to be from both front calipers. Leaning in to listen it is coming from the caliper. I haven't had the time to remove them yet, but in my initial check the fluids where full, with just a slight orange appearance. The rear pads and the fronts have almost 3/4 pad life left or more. It is as if the pistons that push the pad are making the noise and this happens after the pad makes contact to the rotor and pressure is being increased (whether the car is in motion or not). It definately is a very piculiar sound almost as if an aluminum hinge is in a bind and being forced to move and it bounces back and forth from one wheel to the other. This does not affect the cars braking performance. I've checked the pedal assembly and hing and plunger are working find with no noise localized inside the cabin. The only noise I hear is outside resinating to the inside and it is definately from the outside.
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