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Post by *~Tink*~ on Mar 27, 2006 21:31:49 GMT -5
I have an 04 Lancer and the brakes were all replaced when I bought the car, yet every single time I put the car in reverse and brake, it has a horrible squeak, but not when I'm in drive. Any ideas why? And what can be done to make it stop.
I know that with new brakes some intermittant brake noise is normal, but this happens EVERY time.
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Post by Töuge-MR on Mar 28, 2006 11:53:21 GMT -5
sounds like the wear indicator is bending itself under the pad, which isnt normal.. either that or they forgot to put the happy-no-squeek fudge on your pads
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Post by rotarded on Mar 28, 2006 18:48:16 GMT -5
A few facts:
Most replacement pads have an unusually high metal content. This is because they wear far longer than carbon based pads, which means that the "lifetime warranty" the shops give you will require less frequent replacement of pads only. This metal content also serves to wear the rotor quicker, so you get to buy rotors when they replace the pads "under warranty". Nice huh?
Back on subject....Since the pads are contacting the rotors mostly while moving forward, the rear of the pads wear at a very slight margin less than the leading edge. It also can get a microscopic metallic debris/lip edge, which "catches" when the rotor is moving in the reverse direction, causing noise. How this relates to you: Touge is correct about the no-squeak on the backing plates. If they forgot, you will get noise from the pads as they vibrate at a high frequency due to the metallic nature of the entire brake/pad assembly. They may also have forgotten to transfer the shims, which will also allow for more vibration, and thusly noise.
If all of these previous things have been done correctly, then you next option is to have the leading and trailing edges of the pads chamfered (aka beveled) which should reduce the noise.
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Post by *~Tink*~ on Mar 29, 2006 15:59:48 GMT -5
Thank you guys so much. I'll be sure to talk to the last mechanic we have here...the one that did the work on my car in the first place.
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