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Old 03-21-2005, 14:01   #1 (permalink)
Armchair observer
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89 Sable brake crunch noise

My 89 Sable wagon had brake pads and shoes replaced at 110K miles. At
first the bakes were fine, but now at around 112K I am hearing a loud
crunching/chattering noise whenever coming to a full stop. The brakes
will be quiet until the last half second before the car stops - then
CRRRUNCH! The puzzling thing is that it seems to be coming from both
the front disc and back drum brakes. The shop that did the brake job
says that this noise is "normal."

Will this crunching noise go away as the brakes wear in? Will it get
worse? Is there anything that can be done to reduce the noise now?
Calling all Ford brake experts!
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Old 03-21-2005, 15:01   #2 (permalink)
BOB URZ
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Re: 89 Sable brake crunch noise



Armchair observer wrote:

> My 89 Sable wagon had brake pads and shoes replaced at 110K miles. At
> first the bakes were fine, but now at around 112K I am hearing a loud
> crunching/chattering noise whenever coming to a full stop. The brakes
> will be quiet until the last half second before the car stops - then
> CRRRUNCH! The puzzling thing is that it seems to be coming from both
> the front disc and back drum brakes. The shop that did the brake job
> says that this noise is "normal."
>
> Will this crunching noise go away as the brakes wear in? Will it get
> worse? Is there anything that can be done to reduce the noise now?
> Calling all Ford brake experts!


I would make sure the calliper pins are not corroded and properly lubed.

I had a deal on one of my taurus where i had some brake noise.
It turned out the aftermarket pads were slightly too big and
the rotor wore a grove in them and i had some chatter when the
grove got wore in deep enough.

The rears is would make sure the emergency brake is not dragging
and the shoes are properly adjusted.

Bob


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Old 03-21-2005, 18:01   #3 (permalink)
Backyard Mechanic
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Re: 89 Sable brake crunch noise

Armchair observer opined in news:14eu31le2ooeem9mogefo9hq1983bdrgb7@4ax.com:

> My 89 Sable wagon had brake pads and shoes replaced at 110K miles. At
> first the bakes were fine, but now at around 112K I am hearing a loud
> crunching/chattering noise whenever coming to a full stop. The brakes
> will be quiet until the last half second before the car stops - then
> CRRRUNCH! The puzzling thing is that it seems to be coming from both
> the front disc and back drum brakes. The shop that did the brake job
> says that this noise is "normal."
>
> Will this crunching noise go away as the brakes wear in? Will it get
> worse? Is there anything that can be done to reduce the noise now?
> Calling all Ford brake experts!


Sorry... this is likely caused by the pad/lining material used.



--
- Yes, I'm a crusty old geezer curmudgeon.. deal with it! -
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Old 03-22-2005, 07:01   #4 (permalink)
Armchair observer
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Re: 89 Sable brake crunch noise

On Tue, 22 Mar 2005 00:56:51 GMT, Backyard Mechanic
<pettyfog@Yaywho.com> wrote:

>Armchair observer opined in news:14eu31le2ooeem9mogefo9hq1983bdrgb7@4ax.com:
>
>> My 89 Sable wagon had brake pads and shoes replaced at 110K miles. At
>> first the bakes were fine, but now at around 112K I am hearing a loud
>> crunching/chattering noise whenever coming to a full stop. The brakes
>> will be quiet until the last half second before the car stops - then
>> CRRRUNCH! The puzzling thing is that it seems to be coming from both
>> the front disc and back drum brakes. The shop that did the brake job
>> says that this noise is "normal."
>>
>> Will this crunching noise go away as the brakes wear in? Will it get
>> worse? Is there anything that can be done to reduce the noise now?
>> Calling all Ford brake experts!

>
>Sorry... this is likely caused by the pad/lining material used.


The pads are new Ford parts. The rotors were aftermarket replacements.
Would changing the rotors help?

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Old 03-23-2005, 05:01   #5 (permalink)
sleepdog@optonline.net
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Re: 89 Sable brake crunch noise

The crunching noise you hear is an indication that something is not
right. I would take it back and explain to them that the car did not
make this noise prior to the repair, do a test drive and have them get
it up on the lift to see what's rubbing or grinding.

There is always the possibility that the repair was probably done
correctly and then something else decided to wear out on you
coincidentally after it was done.

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