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#1: Brake repair question

Posted on 2008-03-14 00:32:44 by J

Please tell me if this sounds right.

The left front brake began squeaking on my 1994 Chevrolet Corsica. I know
that this often means that the brake pad is wearing down, so I took the car
to a local repair shop and dropped it off. Later in the day the mechanic
called me and said that it needs new pads and calipers on both sides, and
that a hose is broken on one side. I told him to go ahead and do whatever
needs to be done.

He called me back a while later and said that he was unable to repair the
brakes because a special scanner was required to bleed the brake system on
this car and he does not have a scanner. I had a mechanic put new pads on a
couple years ago and there was no scanner involved. He is now retired and no
longer in business so I can't take it to him.

What is this scanner that the mechanic is talking about?

Thank you.

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#2: Re: Brake repair question

Posted on 2008-03-14 00:51:40 by csr684NOT

J wrote:
> Please tell me if this sounds right.
>
> The left front brake began squeaking on my 1994 Chevrolet Corsica. I know
> that this often means that the brake pad is wearing down, so I took the car
> to a local repair shop and dropped it off. Later in the day the mechanic
> called me and said that it needs new pads and calipers on both sides, and
> that a hose is broken on one side. I told him to go ahead and do whatever
> needs to be done.
>
> He called me back a while later and said that he was unable to repair the
> brakes because a special scanner was required to bleed the brake system on
> this car and he does not have a scanner. I had a mechanic put new pads on a
> couple years ago and there was no scanner involved. He is now retired and no
> longer in business so I can't take it to him.
>
> What is this scanner that the mechanic is talking about?
>
> Thank you.
>
>

He means he needs a GOOD scanner like a Tech 2 or a Genesis so he can
cycle the ABS unit to purge it of air. Without the Scanner he cannot
purge the air out of the system and make the brakes work properly. If he
is an actual mechanic with a shop and doesn't have one I would find a
better shop. You need the proper tools to do the job.

The other mechanic didn't replace the calipers or the bad line, by not
doing that work he didn't break the system and allow air to enter the
system and cause problems.


--
Steve W.
Near Cooperstown, New York

Life is not like a box of chocolates
it's more like a jar of jalapenos-
what you do today could burn your ass tomorrow!

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#3: Re: Brake repair question

Posted on 2008-03-14 02:55:20 by aarcuda69062

In article &lt;wQiCj.16083$<a href="mailto:Ej5.14696&#64;newssvr29.news.prodigy.net" target="_blank">Ej5.14696&#64;newssvr29.news.prodigy.net</a>&gt;,
&quot;J&quot; &lt;<a href="mailto:durhambusdriver&#64;sbcglobal.net" target="_blank">durhambusdriver&#64;sbcglobal.net</a>&gt; wrote:

&gt; Please tell me if this sounds right.
&gt;
&gt; The left front brake began squeaking on my 1994 Chevrolet Corsica. I know
&gt; that this often means that the brake pad is wearing down, so I took the car
&gt; to a local repair shop and dropped it off. Later in the day the mechanic
&gt; called me and said that it needs new pads and calipers on both sides, and
&gt; that a hose is broken on one side. I told him to go ahead and do whatever
&gt; needs to be done.
&gt;
&gt; He called me back a while later and said that he was unable to repair the
&gt; brakes because a special scanner was required to bleed the brake system on
&gt; this car and he does not have a scanner.

Horse hockey. A scan tool is not needed for a simple caliper
change.

&gt; What is this scanner that the mechanic is talking about?

Your mechanic doesn't -know- what he's talking about.

A scan tool is needed for certain bleeding procedures when
changing some ABS components but not just to change calipers.

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#4: Re: Brake repair question

Posted on 2008-03-14 06:30:03 by ratatouillerat

On Thu, 13 Mar 2008 20:55:20 -0500, aarcuda69062
&lt;<a href="mailto:nonelson&#64;sbcglobal.net" target="_blank">nonelson&#64;sbcglobal.net</a>&gt; wrote:

&gt;In article &lt;wQiCj.16083$<a href="mailto:Ej5.14696&#64;newssvr29.news.prodigy.net" target="_blank">Ej5.14696&#64;newssvr29.news.prodigy.net</a>&gt;,
&gt; &quot;J&quot; &lt;<a href="mailto:durhambusdriver&#64;sbcglobal.net" target="_blank">durhambusdriver&#64;sbcglobal.net</a>&gt; wrote:
&gt;
&gt;&gt; Please tell me if this sounds right.
&gt;&gt;
&gt;&gt; The left front brake began squeaking on my 1994 Chevrolet Corsica. I know
&gt;&gt; that this often means that the brake pad is wearing down, so I took the car
&gt;&gt; to a local repair shop and dropped it off. Later in the day the mechanic
&gt;&gt; called me and said that it needs new pads and calipers on both sides, and
&gt;&gt; that a hose is broken on one side. I told him to go ahead and do whatever
&gt;&gt; needs to be done.
&gt;&gt;
&gt;&gt; He called me back a while later and said that he was unable to repair the
&gt;&gt; brakes because a special scanner was required to bleed the brake system on
&gt;&gt; this car and he does not have a scanner.
&gt;
&gt;Horse hockey. A scan tool is not needed for a simple caliper
&gt;change.
&gt;
&gt;&gt; What is this scanner that the mechanic is talking about?
&gt;
&gt;Your mechanic doesn't -know- what he's talking about.
&gt;
&gt;A scan tool is needed for certain bleeding procedures when
&gt;changing some ABS components but not just to change calipers.

Umm, he's also changing a brake hose...

Pete

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#5: Re: Brake repair question

Posted on 2008-03-14 14:33:43 by aarcuda69062

In article &lt;<a href="mailto:47da0d21.93066609&#64;news.astraweb.com" target="_blank">47da0d21.93066609&#64;news.astraweb.com</a>&gt;,
<a href="mailto:ratatouillerat&#64;yahoo.com" target="_blank">ratatouillerat&#64;yahoo.com</a> wrote:

&gt; On Thu, 13 Mar 2008 20:55:20 -0500, aarcuda69062
&gt; &lt;<a href="mailto:nonelson&#64;sbcglobal.net" target="_blank">nonelson&#64;sbcglobal.net</a>&gt; wrote:
&gt;
&gt; &gt;In article &lt;wQiCj.16083$<a href="mailto:Ej5.14696&#64;newssvr29.news.prodigy.net" target="_blank">Ej5.14696&#64;newssvr29.news.prodigy.net</a>&gt;,
&gt; &gt; &quot;J&quot; &lt;<a href="mailto:durhambusdriver&#64;sbcglobal.net" target="_blank">durhambusdriver&#64;sbcglobal.net</a>&gt; wrote:
&gt; &gt;
&gt; &gt;&gt; Please tell me if this sounds right.
&gt; &gt;&gt;
&gt; &gt;&gt; The left front brake began squeaking on my 1994 Chevrolet Corsica. I know
&gt; &gt;&gt; that this often means that the brake pad is wearing down, so I took the
&gt; &gt;&gt; car
&gt; &gt;&gt; to a local repair shop and dropped it off. Later in the day the mechanic
&gt; &gt;&gt; called me and said that it needs new pads and calipers on both sides, and
&gt; &gt;&gt; that a hose is broken on one side. I told him to go ahead and do whatever
&gt; &gt;&gt; needs to be done.
&gt; &gt;&gt;
&gt; &gt;&gt; He called me back a while later and said that he was unable to repair the
&gt; &gt;&gt; brakes because a special scanner was required to bleed the brake system on
&gt; &gt;&gt; this car and he does not have a scanner.
&gt; &gt;
&gt; &gt;Horse hockey. A scan tool is not needed for a simple caliper
&gt; &gt;change.
&gt; &gt;
&gt; &gt;&gt; What is this scanner that the mechanic is talking about?
&gt; &gt;
&gt; &gt;Your mechanic doesn't -know- what he's talking about.
&gt; &gt;
&gt; &gt;A scan tool is needed for certain bleeding procedures when
&gt; &gt;changing some ABS components but not just to change calipers.
&gt;
&gt; Umm, he's also changing a brake hose...

Assuming it's a hose that attaches to a caliper, it's still not
enough to introduce air into the ABS.

This &quot;mechanic&quot; did the OP a favor though...

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#6: Re: Brake repair question

Posted on 2008-03-14 14:54:42 by HLS

&quot;aarcuda69062&quot; &lt;<a href="mailto:nonelson&#64;sbcglobal.net" target="_blank">nonelson&#64;sbcglobal.net</a>&gt; wrote in message news:nonelson-
&gt; This &quot;mechanic&quot; did the OP a favor though...

You got that right...

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#7: Re: Brake repair question

Posted on 2008-03-14 15:02:00 by tetraethylleadREMOVETHIS

In article &lt;<a href="mailto:47da0d21.93066609&#64;news.astraweb.com" target="_blank">47da0d21.93066609&#64;news.astraweb.com</a>&gt;, <a href="mailto:ratatouillerat&#64;yahoo.com" target="_blank">ratatouillerat&#64;yahoo.com</a> wrote:
&gt;On Thu, 13 Mar 2008 20:55:20 -0500, aarcuda69062
&gt;&lt;<a href="mailto:nonelson&#64;sbcglobal.net" target="_blank">nonelson&#64;sbcglobal.net</a>&gt; wrote:
&gt;
&gt;&gt;In article &lt;wQiCj.16083$<a href="mailto:Ej5.14696&#64;newssvr29.news.prodigy.net" target="_blank">Ej5.14696&#64;newssvr29.news.prodigy.net</a>&gt;,
&gt;&gt; &quot;J&quot; &lt;<a href="mailto:durhambusdriver&#64;sbcglobal.net" target="_blank">durhambusdriver&#64;sbcglobal.net</a>&gt; wrote:
&gt;&gt;
&gt;&gt;&gt; Please tell me if this sounds right.
&gt;&gt;&gt;
&gt;&gt;&gt; The left front brake began squeaking on my 1994 Chevrolet Corsica. I know
&gt;&gt;&gt; that this often means that the brake pad is wearing down, so I took the car
&gt;&gt;&gt; to a local repair shop and dropped it off. Later in the day the mechanic
&gt;&gt;&gt; called me and said that it needs new pads and calipers on both sides, and
&gt;&gt;&gt; that a hose is broken on one side. I told him to go ahead and do whatever
&gt;&gt;&gt; needs to be done.
&gt;&gt;&gt;
&gt;&gt;&gt; He called me back a while later and said that he was unable to repair the
&gt;&gt;&gt; brakes because a special scanner was required to bleed the brake system on
&gt;&gt;&gt; this car and he does not have a scanner.
&gt;&gt;
&gt;&gt;Horse hockey. A scan tool is not needed for a simple caliper
&gt;&gt;change.
&gt;&gt;
&gt;&gt;&gt; What is this scanner that the mechanic is talking about?
&gt;&gt;
&gt;&gt;Your mechanic doesn't -know- what he's talking about.
&gt;&gt;
&gt;&gt;A scan tool is needed for certain bleeding procedures when
&gt;&gt;changing some ABS components but not just to change calipers.
&gt;
&gt;Umm, he's also changing a brake hose...

The brake hose is immediately before the caliper it's just a little more
air at the end of the branch than replacing the caliper alone. There
should be no need to deal with the ABS computer at all. The ABS system
might interfere with using a vacume bleeder but I doubt it. Even if for
some strange reason it did, the old fashioned push the brake pedal
method would still clear the air from the new hose and calipers.

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#8: Re: Brake repair question

Posted on 2008-03-14 19:02:17 by kludge

J &lt;<a href="mailto:durhambusdriver&#64;sbcglobal.net" target="_blank">durhambusdriver&#64;sbcglobal.net</a>&gt; wrote:
&gt;Please tell me if this sounds right.
&gt;
&gt;The left front brake began squeaking on my 1994 Chevrolet Corsica. I know
&gt;that this often means that the brake pad is wearing down, so I took the car
&gt;to a local repair shop and dropped it off. Later in the day the mechanic
&gt;called me and said that it needs new pads and calipers on both sides, and
&gt;that a hose is broken on one side. I told him to go ahead and do whatever
&gt;needs to be done.

If it was squeaking when the brake was not applied, it was because the
caliper was stuck and the brake pads were not completely retracted from
the rotor and were scraping against it. This is a common failure, and
will require new pads and calipers.

Bad hoses are also common. Do you change your brake fluid every year or
do you just wait for it to fail?

&gt;He called me back a while later and said that he was unable to repair the
&gt;brakes because a special scanner was required to bleed the brake system on
&gt;this car and he does not have a scanner. I had a mechanic put new pads on a
&gt;couple years ago and there was no scanner involved. He is now retired and no
&gt;longer in business so I can't take it to him.
&gt;
&gt;What is this scanner that the mechanic is talking about?

I believe this car needs a special tool in order to bleed the brake system.
It's not required to just change the pads, but any time the brake lines
are opened, air gets into them and it needs to be purged out. This includes
whenever you do the regular fluid change.

Take the car to someone who has the tool, have him replace the calipers,
pads, hose, and change all the fluid.
--scott
--
&quot;C'est un Nagra. C'est suisse, et tres, tres precis.&quot;

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#9: Re: Brake repair question

Posted on 2008-03-17 18:32:52 by Abo

Brent P wrote:
&gt; In article &lt;<a href="mailto:47da0d21.93066609&#64;news.astraweb.com" target="_blank">47da0d21.93066609&#64;news.astraweb.com</a>&gt;, <a href="mailto:ratatouillerat&#64;yahoo.com" target="_blank">ratatouillerat&#64;yahoo.com</a> wrote:
&gt;&gt; On Thu, 13 Mar 2008 20:55:20 -0500, aarcuda69062
&gt;&gt; &lt;<a href="mailto:nonelson&#64;sbcglobal.net" target="_blank">nonelson&#64;sbcglobal.net</a>&gt; wrote:

&gt;&gt;&gt;
&gt;&gt;&gt; A scan tool is needed for certain bleeding procedures when
&gt;&gt;&gt; changing some ABS components but not just to change calipers.
&gt;&gt; Umm, he's also changing a brake hose...
&gt;
&gt; The brake hose is immediately before the caliper it's just a little more
&gt; air at the end of the branch than replacing the caliper alone. There
&gt; should be no need to deal with the ABS computer at all. The ABS system
&gt; might interfere with using a vacume bleeder but I doubt it. Even if for
&gt; some strange reason it did, the old fashioned push the brake pedal
&gt; method would still clear the air from the new hose and calipers.
&gt;
&gt;

The other possibility is that the mechanic goofed and ran the brake
reservoir dry while doing a &quot;normal&quot; brake bleed, thus introducing air
into the ABS system and making it necessary to have a good scanner to
purge the air.... :-/


Modern systems aren't necessarily harder to work on than older ones....
but they can be a lot less idiot-tolerant.

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