[Vwdiesel] Caddy brakes

[Erik Lane]

I wonder if that's the problem that my sister's car is having. It's a
Pontiac, but a hydraulic clutch is a hydraulic clutch, I would think.
She seems to get some air in there and need the clutch to be bled,
even though the reservoir still has fluid and I don't see any leaks
anywhere. I replaced the master cylinder a few months ago and have had
to bleed it once for her since then. I don't live near her, so I don't
get a chance to work on it very much. That will change in a couple
weeks, though.

Is there anything else it can really be? It seems to me that either
the master cylinder is bad, or there's an air leak into the system.
But I'm surprised that there isn't a corresponding fluid leak out if
air is getting in. I'm puzzled by it and will likely be working on it
before too long if it continues to have the problem.

Thanks,
Erik

On Tue, Jun 12, 2012 at 10:11 AM, Tad <tadc at europa.com> wrote:
> What Loren said... if the pedal is dropping and you don't see fluid leaking
> out somewhere, it must be leaking past the master cylinder piston.
>
> I had a similar issue with a clutch master once.. replaced it, problem
> wasn't fixed, spent ages trying to find the "real problem"... well the real
> problem was the new clutch master was bad too!
>
> On Mon, Jun 11, 2012 at 10:26 PM, <lbaird119 at aol.com> wrote:
>
>>
>>
>>
>> i have no clue why it wont hold pressure.
>> t feels good, then it drops to the floor after a min or so.
>> ump and its good then bleeds pressure again.
>>
>> nyone have any suggestions
>>
>>
>>
>>
>>  From what I've always been told and seen, if you hold the pedal and it
>> slowly sinks then you have a bad master cylinder.  Best way I've seen to
>> "ruin" a new MC is to push the pedal all the way down while doing the
>> initial bleeding.  You can pump to bleed but don't push the pedal much over
>> half way.
>>  If it simply had a low pedal then I'd pull the parking brake on halfway
>> and see what it feels like then.  That's the issue I'm dealing with now.
>>  Either worn shoes, drum or both.  One of these days I'll take the drums
>> off and see.  Busy moving a house, doing brakes on a Hesston crawler along
>> with all the usual crap right now.  :-P
>>    Loren
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