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#1
11-26-2011, 06:47 PM
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Brakes Buzz
Hi all,
I just replaced all 4 rotors, and all the pads. Now, sometimes when I apply the brakes, I hear a buzz (similar to hitting the rumble strip on the side of the highway, but not as loud) from the front brakes, sounds like the passenger's side. What could I have done? Thanks, Jack 
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#2
11-26-2011, 07:21 PM
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Answer
Check the anti rattle clips are not damaged or missing.
.
__________________
ASE Master Mechanic asemastermechanic@juno.com Prototype R&D/testing: Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician. Noise Vibration and Harshness (NVH). Dynamometer. Heat exchanger durability. HV-A/C Climate Control. Vehicle build. Fleet Durability Technical Quality Auditor. Automotive Technical Writer 1985 300SD 1983 300D 1984 190D 2003 Volvo V70 2002 Honda Civic https://www.boldegoist.com/
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#3
11-26-2011, 08:39 PM
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any chance you changed wheels or lugs when you did this?
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!!  1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#4
11-26-2011, 08:40 PM
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if not, perhaps the rotor bolts are backing out and hitting the caliper?
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#5
11-26-2011, 08:48 PM
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Quote:
Quote:
Last edited by tangofox007; 11-26-2011 at 09:04 PM.
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#6
11-27-2011, 10:16 AM
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Hey guys, thanks for the suggestions.
I didn't change wheels or lugs. I checked the anti-rattle clips, and I think they're back together alright, although they are a different style than the ones in the wiki PeachPartsWiki: Front Brake Pad & Rotor Replacement. Mine are bent wire that goes under the slide pins and presses up against the sides of the caliper. I checked the spindle nut. Maybe it was a bit loose, so I redid the tightening and backing off. Just did a test drive and still have the issue. Probably unrelated, but I think I damaged a bearing on the other wheel when I was removing the hub. The hub was stuck on after removing the spindle nut and outer bearing, so I had to beat on the rotor with a hammer some. I get the typical thunk thunk thunk when turning in the opposite direction. Any more ideas about the buzzing? The brakes work well, and stop the car fine. The thin backing piece on one of the pads did fall off before I installed it, and I just stuck it back on. Could this be the issue? Thanks, Jack
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#7
11-27-2011, 10:22 AM
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If the wheel bearing is damaged better change it.
__________________
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.  [SIGPIC]..I also have a 427 Cobra replica with an aluminum chassis.
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#8
11-27-2011, 10:24 AM
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I plan on changing the bearings on the other side ASAP. I don't think that would be causing the buzz though. Also, I didn't use any "brake paste" when I installed the pads. Just some lube on the slide pins. Was this a mistake?
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