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snibble1

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Since: Jul 02, 2005
Posts: 9



(Msg. 1) Posted: Sat Jul 02, 2005 6:00 pm
Post subject: 1990 Cadillac Seville-4 dr
Archived from groups: alt>autos>cadillac (more info?)
Very good condition. 116K miles. Had brakes replaced. Brake pedal went
to the floor first day. Then came back. It's now been 2 months and brake
pedal going to the floor again. Have not had to add any fluid to the
master cylinder. Anybody have any ideas what is going on?

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Bob D.

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Since: Oct 25, 2004
Posts: 35



(Msg. 2) Posted: Sat Jul 02, 2005 6:00 pm
Post subject: Re: 1990 Cadillac Seville-4 dr [Login to view extended thread Info.]
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Possibly a bad flexible brake line from frame to wheel? Also could be a bad
master cylinder leaking past the piston. You could try taking the cover
off the master cylinder and having someone push down on the brake
pedal SLOWLY and see if you get bubbles.

There are MANY folks in this newsgroup smarter than me who might
have a better idea. It's just the holiday weekend and they are all BBQ-ing.


"snibble1" <a901u.DeleteThis@aol.com> wrote in message
news:1427d8e592ef51c398ade048f37d606a@localhost.talkaboutautos.com...
> Very good condition. 116K miles. Had brakes replaced. Brake pedal went
> to the floor first day. Then came back. It's now been 2 months and brake
> pedal going to the floor again. Have not had to add any fluid to the
> master cylinder. Anybody have any ideas what is going on?
>

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MisterSkippy1

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Since: Sep 22, 2004
Posts: 103



(Msg. 3) Posted: Sun Jul 03, 2005 4:15 pm
Post subject: Re: 1990 Cadillac Seville-4 dr [Login to view extended thread Info.]
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On Sat, 02 Jul 2005 18:00:03 -0400, "snibble1" <a901u RemoveThis @aol.com> wrote:

>Very good condition. 116K miles. Had brakes replaced. Brake pedal went
>to the floor first day. Then came back. It's now been 2 months and brake
>pedal going to the floor again. Have not had to add any fluid to the
>master cylinder. Anybody have any ideas what is going on?

I've never seen it be anything but a bad master cylinder. Other
possibilities, of course, but IMHO, not as likely.
FWIW
YMMV
DFB
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snibble1

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Since: Jul 02, 2005
Posts: 9



(Msg. 4) Posted: Sat Jul 09, 2005 7:12 pm
Post subject: Re: 1990 Cadillac Seville-4 dr [Login to view extended thread Info.]
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Well, replaced master cylinder. Brakes are still low. In reading my
repair book, it states to bleed the brakes in this order ONLY: right
rear, left front, left rear, and THEN right front. I didn't realize that
and bled them right rear, left rear, right front, left front....think if I
do them again it would make a difference? I hadn't heard of this specific
instruction before!
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MisterSkippy1

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Since: Sep 22, 2004
Posts: 103



(Msg. 5) Posted: Sun Jul 10, 2005 12:19 pm
Post subject: Re: 1990 Cadillac Seville-4 dr [Login to view extended thread Info.]
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On Sat, 09 Jul 2005 19:12:57 -0400, "snibble1" <a901u.RemoveThis@aol.com> wrote:

>Well, replaced master cylinder. Brakes are still low. In reading my
>repair book, it states to bleed the brakes in this order ONLY: right
>rear, left front, left rear, and THEN right front. I didn't realize that
>and bled them right rear, left rear, right front, left front....think if I
>do them again it would make a difference? I hadn't heard of this specific
>instruction before!


Your post got my interest. Just looked at the FSM, section 5-14, for
my '93 Eldo and it calls for ....
1-Left front
2-Right front
3-Left rear
4-Right rear
for either manual bleed or pressure bleed.

The last brake job I did was on my old Econoline and that called for
the same sequence you used.
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snibble1

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Since: Jul 02, 2005
Posts: 9



(Msg. 6) Posted: Sun Jul 10, 2005 7:08 pm
Post subject: Re: 1990 Cadillac Seville-4 dr [Login to view extended thread Info.]
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No laughing....what's a "pressure bleed"?
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Curtis

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Since: Mar 20, 2005
Posts: 33



(Msg. 7) Posted: Mon Jul 11, 2005 9:26 pm
Post subject: Re: 1990 Cadillac Seville-4 dr [Login to view extended thread Info.]
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A Pressure bleeder uses brake fluid under pressure to bleed the brakes. Just
open the bleeder valve and fluid comes flowing out great for 1 person
bleeding.


"snibble1" <a901u DeleteThis @aol.com> wrote in message
news:1e21f962441bf5e76406cc02c1e0c4af@localhost.talkaboutautos.com...
> No laughing....what's a "pressure bleed"?
>
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donji

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Since: Oct 28, 2005
Posts: 4



(Msg. 8) Posted: Sat Jan 03, 2009 12:11 am
Post subject: Re: 1990 Cadillac Seville-4 dr [Login to view extended thread Info.]
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I'd say you're on the right track.When you said the brakes had been
done ,but pedal went to the floor first thing i thought was air still
in the brake line.Lots of times (Too often for my money) the brakes
aren't bled right so air stays in the brake line.On Mon, 11 Jul 2005
21:26:19 -0700, "Curtis" <curtis916.RemoveThis@comcast.net> wrote:

>A Pressure bleeder uses brake fluid under pressure to bleed the brakes. Just
>open the bleeder valve and fluid comes flowing out great for 1 person
>bleeding.
>
>
>"snibble1" <a901u.RemoveThis@aol.com> wrote in message
>news:1e21f962441bf5e76406cc02c1e0c4af@localhost.talkaboutautos.com...
>> No laughing....what's a "pressure bleed"?
>>
>
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