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  #1  
Old 21st April 2006
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Exclamation Air Getting into Slave Clutch CyL? HELP!

... btw... I have a 1994 saab 9000 2.3 turbo
there is air getting into my hydro clutch system, and i can bleed it and it works great for about 10 minutes, but the air gets back in, and the clutch basically becomes unresponsive. It can be pushed to the floor with very little or no effect.

There is a leak at the very bottom of the engine, a very slow leak, my clutch fluid/brake resevoir is not noticably dropping but is most likely the one leaking.

but for something to leak, air has to be getting in right?, and air usually doesnt get in through leaking lines/hoses right?

My local saab junkie mechanic says that i need to replace my slave clutch cylendar, but that will cost upward of $800.00, and i am wondering if this is going to fix it, anyone had a similar problem??
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  #2  
Old 22nd April 2006
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I had the same problem with my '87, the clutch could work right for a couple of days or lose all the oil in a night, it only depended on its mood of the day. I decided to buy a new car because I didn't think it was woth it to repair, and I was becoming too good at driving with no clutch
Besides, the last bleeding I did, 5 months ago, is still working . Apparently buying the new car cured the faulty slave cylinder in the old one .
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Old 22nd April 2006
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It definitely sounds like the slave cylinder has failed and as its a gearbox out job is expensive. Ensure you have checked the flexible for leaks though.

Mine did the same and I took the cheaper action of hoping it was the master cylinder and as its easier and cheaper to change, did it, no different, so changed the flexible, no different then bit the bullet and pulled the gearbox and did the slave....problem fixed at more expense than it should have been!
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Old 22nd April 2006
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Whoever made the decision to put the slave inside the bell housing should be fired from SAAB if he has not been. That said, I have not had a single slave gone bad on me on the four 9k's I own/owned.
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  #5  
Old 22nd April 2006
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Quote:
Originally Posted by yaofeng
Whoever made the decision to put the slave inside the bell housing should be fired from SAAB if he has not been. That said, I have not had a single slave gone bad on me on the four 9k's I own/owned.
You think that's coincidence?
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Old 22nd April 2006
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Quote:
Originally Posted by Jim Mesthene
You think that's coincidence?
What do YOU think?
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  #7  
Old 22nd April 2006
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Quote:
Originally Posted by Jim Mesthene
You think that's coincidence?
No I don't think it is coincidence. There is no reason to put the slave in there even if it is designed to last 500,000 miles. I am just lucky is my guess. It give the mechanic and the dealer more business. No wonder you do not agree.
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  #8  
Old 22nd April 2006
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Internal slave cylinders don't fail as often as external ones; I think that's why you're so lucky.


"It give the mechanic and the dealer more business. No wonder you do not agree"
What did I do to deserve this hostility?

Last edited by Jim Mesthene; 22nd April 2006 at 04:21 PM.
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Old 22nd April 2006
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Slave cylinders usually outlast the first clutch, but not the second. So, replacing the clutch without changing the slave cylinder (like I suspect the previous owner of my car did) is looking for troubles, while changing the slave everytime the gearbox is out, even when it's still new, is safe(ish) motoring.

Last edited by Stefano; 22nd April 2006 at 04:26 PM.
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  #10  
Old 23rd April 2006
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Quote:
Originally Posted by Jim Mesthene
Internal slave cylinders don't fail as often as external ones; I think that's why you're so lucky.


"It give the mechanic and the dealer more business. No wonder you do not agree"
What did I do to deserve this hostility?
I apologize if I offended you. It doesn't change my opinion the slave should not be installed inside the bell housing. The slave may be designed to out last the clutch, or even a second clutch. Does SAAB warrantees that? Doing a gear box removal because you need to replace the slave cylinder simply doesn't make sense.

On my 525 or a 325 I used to own, changing the slave takes 15 minutes.
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  #11  
Old 24th April 2006
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Default Clutch slipping

The slave cylinder in my '93 2.3T (now my daughter's car!) died at 85k mi. I had the entire clutch job done by a good mechanic in Coos Bay, Oregon, but he was not specifically a SAAB mechanic. (European cars in general)

Now we are having issues with the clutch slipping. It happened to me only a month or so after the new clutch...I was climbing a hill with the car fully loaded, and in 4th gear. It has since done this slipping several times, even on level roads and not in a high gear. It doesn't happen on start-off in first, but will slip if I floor it in any other gear.
Has anyone had this issue? Could there be oil leaking onto the clutch from either the trans or engine?

Thanks......Ben
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  #12  
Old 24th April 2006
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Quote:
Originally Posted by benoberon
It has since done this slipping several times, even on level roads and not in a high gear. It doesn't happen on start-off in first, but will slip if I floor it in any other gear.
Has anyone had this issue? Could there be oil leaking onto the clutch from either the trans or engine?
On a few occasions, I've seen clutch lines or clutch master cylinders that would not let fluid flow back to the reservoir when the pedal was released. The fluid heated up and slowly disengaged the clutch. Diagnose this by opening the bleeder when it happens. If it's pressurized, that's the problem.
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  #13  
Old 24th April 2006
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"Diagnose this by opening the bleeder when it happens. If it's pressurized, that's the problem"

Thanks, I will try that. If that is it, what would you suggest as a fix?
Ben
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  #14  
Old 24th April 2006
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Replace the offending parts. You'd probably want to do both at the same time.

Last edited by Jim Mesthene; 24th April 2006 at 04:45 PM.
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  #15  
Old 24th April 2006
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Quote:
Originally Posted by benoberon
The slave cylinder in my '93 2.3T (now my daughter's car!) died at 85k mi.
ARGH!! It was just replaced in 2000 (is that really 6 years ago...?) damn anyone here ever have to replace the slave cylendar twice? Im up to 150k... so i guess maybe it had it comming...

or maybe my driving habbits are a bit to harsh
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