Slave Cylinder?
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From: NorCal
Slave Cylinder?
While backing a trailer the other day (in my 02), I was working the clutch like always and noticed if I held the clutch in too long, it seemed as if i was loosing hydraulic pressure. The throw on the pedal would disappear and the clutch would grab pretty much with the pedal on the floor. If I pump the pedal a few times it acts normal again. Regular driving seems normal. I'm assuming I have a slave cylinder going bad, letting the fluid bypass after time, but does anyone else have any other ideas? My fluid level is good with no visible leaks.
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2002 F-350 XLT 4x4 PSD 6spd SC SB SRW
2001 400ex SportTrax
1990 F-150 Lariat 4x4 I-6 5spd RC SB
---Also in Family---
2003 F-250 XLT FX4 6.0PSD TSA SC SB
2001 F-150 XLT 4x4 5.4 AT SC SB
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2002 F-350 XLT 4x4 PSD 6spd SC SB SRW
2001 400ex SportTrax
1990 F-150 Lariat 4x4 I-6 5spd RC SB
---Also in Family---
2003 F-250 XLT FX4 6.0PSD TSA SC SB
2001 F-150 XLT 4x4 5.4 AT SC SB
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From: Rio Rico, AZ.
Originally Posted by cgl
While backing a trailer the other day (in my 02), I was working the clutch like always and noticed if I held the clutch in too long, it seemed as if i was loosing hydraulic pressure. The throw on the pedal would disappear and the clutch would grab pretty much with the pedal on the floor. If I pump the pedal a few times it acts normal again. Regular driving seems normal. I'm assuming I have a slave cylinder going bad, letting the fluid bypass after time, but does anyone else have any other ideas? My fluid level is good with no visible leaks.
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From: Cabot, Arkansas
That is exactly how it usually starts. Within a week you will have no clutch at all. The slave is very easy, just push and turn to disconnect from the bell housing, then drive out the roll pin to seperate the slave from the tubing.
The problem becomes getting the system re-bled once the replacement is in place, it's very difficult to get all the air out with the hydraulic system installed in the vehicle. An alternative would be to replace the entire hydraulic system....It comes assembled, serviced and pre-bled straight out of the box for about $125.
The problem becomes getting the system re-bled once the replacement is in place, it's very difficult to get all the air out with the hydraulic system installed in the vehicle. An alternative would be to replace the entire hydraulic system....It comes assembled, serviced and pre-bled straight out of the box for about $125.
Tuned
Joined: Jun 2004
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From: San Antonio
Kwik,
that just the hydraulic line your talking about, the slave cylinder itself is in the tranny, going from flywheel going back is pilot bearing, clutch disc, pressure plate, throw out bearing, then the slave cylinder. but like you said, you should see fluid leaking if it was really bad, however my old truck had a bad one that weeped out a little at a time and it was getting onto the disk and burning off. when the clutch finally went it was smooth on one side and like new on the other (about 25k miles)
could there be air in the line? air in the line would compress making the throw from the master cylinder ineffective... re-engaging the clutch... just a thought...
that just the hydraulic line your talking about, the slave cylinder itself is in the tranny, going from flywheel going back is pilot bearing, clutch disc, pressure plate, throw out bearing, then the slave cylinder. but like you said, you should see fluid leaking if it was really bad, however my old truck had a bad one that weeped out a little at a time and it was getting onto the disk and burning off. when the clutch finally went it was smooth on one side and like new on the other (about 25k miles)
could there be air in the line? air in the line would compress making the throw from the master cylinder ineffective... re-engaging the clutch... just a thought...
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From: Cabot, Arkansas
FYI. I've seen several of these (including twice on my truck) where the slave will leak internally, clutch will quit working, and there will be no evidence of fluid leaking anywhere.
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From: NorCal
Originally Posted by cookie88
An alternative would be to replace the entire hydraulic system....It comes assembled, serviced and pre-bled straight out of the box for about $125.
I considered the air theory... but now it seems i'd be better off replacing the whole hydraulic system... better to spend the 125 now then the alternative later.. yow!
Thanks for your help guys!
Last edited by cgl; Jan 25, 2005 at 11:27 AM.
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From: Cabot, Arkansas
Most any Ford dealer will have it on the shelf...it's a common failure. The part number is: 2c3z-7c522-CA. The last one I bought listed for $131.10
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Tuned
Joined: Jun 2004
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From: San Antonio
Cookie, Kwik,
Am I wrong about the slave cylinder location? if so, Kwik, I apologize and to everyone else as well... I've not personally done a PSD tranny, but I have done several other Ford trannys, and in most cases (trucks) they are all about the same or similar... not to make excuses, but I've done it with the tranny out of the truck since I had to replacing clutch assembly...
Am I wrong about the slave cylinder location? if so, Kwik, I apologize and to everyone else as well... I've not personally done a PSD tranny, but I have done several other Ford trannys, and in most cases (trucks) they are all about the same or similar... not to make excuses, but I've done it with the tranny out of the truck since I had to replacing clutch assembly...
Last edited by Technitom; Jan 25, 2005 at 11:42 AM. Reason: additional information
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From: NorCal
Originally Posted by cookie88
Most any Ford dealer will have it on the shelf...it's a common failure. The part number is: 2c3z-7c522-CA. The last one I bought listed for $131.10
Thanks again !
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From: Cabot, Arkansas
Originally Posted by Technitom
Cookie, Kwik,
Am I wrong about the slave cylinder location? if so, Kwik, I apologize and to everyone else as well... I've not personally done a PSD tranny, but I have done several other Ford trannys, and in most cases (trucks) they are all about the same or similar... not to make excuses, but I've done it with the tranny out of the truck since I had to replacing clutch assembly...
Am I wrong about the slave cylinder location? if so, Kwik, I apologize and to everyone else as well... I've not personally done a PSD tranny, but I have done several other Ford trannys, and in most cases (trucks) they are all about the same or similar... not to make excuses, but I've done it with the tranny out of the truck since I had to replacing clutch assembly...
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From: NorCal
It ended up being the master cylinder. I bought the whole setup for $140. The hardest part for me was getting the pushrod out of the old master cylinder. Thanks! It's nice to have a clutch again.
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