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Topic: 78 brake squeak

in Forum: C3 Handling Components


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78 brake squeak (1/7)
 8/23/09 1:34pm
Foley
Former Member

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Vette(s):
1978 Coupe L48


Joined: 9/8/2002
Posts: 17

I have a 78 L48 that has a light squeak heard while driving.  The squeak will stop even if I put the lightest pressure on the brake pedal.  I've run this problem by mechanics, and they don't seem to have any idea.  I've had the brakes inspected several times, and they are reported to be good.  Any thoughts? 

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78 brake squeak (2/7)
 8/23/09 1:43pm
bio11
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Oklahoma City, OK - USA

Vette(s):
1972 LS5 Convertible,Auto.Targa Blue with Black Interior.


Joined: 4/1/2007
Posts: 432

This may sound crazy, but it works on my Mercedes. I have the same problem with it once in a while. The guy that works on my Mercedes told me to put the car in reverse and get up a little speed and stop suddenly, I don't lock up the brakes but I apply them pretty hard. I do this 5 or 6 times and the problem goes away for several months. He said that it knocks the glaze off the pads that forms. Putting the pressure on the pads in the opposite direction is what fixes it he said. It does work for me. Give it a shot. It can't hurt. Warning...it does make me kind of car sick.
78 brake squeak (3/7)
 8/23/09 1:52pm
Foley
Former Member

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Vette(s):
1978 Coupe L48


Joined: 9/8/2002
Posts: 17

Does your Mercedes have the squeak even when your brakes are NOT applied?  Mine does it when I'm not braking and then it quits when I apply the brakes.  I will definitely give your fix a shot though.  I'm willing to try anything at this point. 
78 brake squeak (4/7)
 8/23/09 6:30pm
bio11
Former Member

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Oklahoma City, OK - USA

Vette(s):
1972 LS5 Convertible,Auto.Targa Blue with Black Interior.


Joined: 4/1/2007
Posts: 432

On my Mercedes you hear it when your starting out going slow. If you apply a small amount of brake pressure it stops.
78 brake squeak (5/7)
 8/23/09 10:31pm
Foley
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Vette(s):
1978 Coupe L48


Joined: 9/8/2002
Posts: 17

That sounds pretty familiar.  I'm going to see if your fix will work. 
78 brake squeak (6/7)
 8/23/09 11:48pm
kstyerLifetime Member
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CUYAHOGA FALLS, OH - USA

Vette(s):
1975 C3 Red, T-Tops, Black Interior. All I need is time and money! Getting there!


Joined: 12/2/2003
Posts: 6424

That method has merit, and often works.   You can also use a antisqueek product that goes on the friction surface of the pad, not the backing.  NAPA used to carry it.  It seems against every known good thing to put something on the pad surface, but it does work.   The first few stops seems like you are stepping into gravel, but after several stops they are quiet forevermore.   Do not use any other type product on the surface of the pad.    You could try some things on the backing as well.
78 brake squeak (7/7)
 8/25/09 4:55pm
Foley
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Vette(s):
1978 Coupe L48


Joined: 9/8/2002
Posts: 17

I'll give that a shot.  Thanks!
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