clutch problem
Race Director
Joined: Jan 2008
Posts: 16,028
Likes: 170
From: oregon
slave cylinder is a common failure on the 89-91 car. if you find out yours went upgrade to the later lt1 style. they are stronger and generally more reliable.
when you loose all pressure
check fluid, if good
check master to make sure pressure is going to the slave and the slave is moving, if slave moves and you can see the fork moving then all that's left is pulling the transmission to see what failed
most the time it's a master or slave that dies
especially at that age if it's oem
i have some pretty brutal pics of a zf6 clutch i killed. came apart in pieces, destroyed the slave and chunks of clutch fell when i pulled the trans.
thankfully the clutch system is easy to troubleshoot
when you loose all pressure
check fluid, if good
check master to make sure pressure is going to the slave and the slave is moving, if slave moves and you can see the fork moving then all that's left is pulling the transmission to see what failed
most the time it's a master or slave that dies
especially at that age if it's oem
i have some pretty brutal pics of a zf6 clutch i killed. came apart in pieces, destroyed the slave and chunks of clutch fell when i pulled the trans.
thankfully the clutch system is easy to troubleshoot
Last edited by racebum; Jan 30, 2012 at 01:29 AM.
Intermediate
Joined: Mar 2011
Posts: 41
Likes: 0
From: Bowling Green Kentucky
My new SPEC clutch now acts fine when I first start up and go, but after driving for awhile I have to basically push it through the floorboard to get it to work. Is that a fluid issue as well?
Race Director
Joined: Jan 2008
Posts: 16,028
Likes: 170
From: oregon
usually a failing master or slave. fluid is more dense when cold. as it warms up it's easier to push past the seals
basically lack of hyd pressure .
one way you can test it is with warm fluid, pull the slave and have it braced. push on the clutch pedal and it should be hard as a rock. if you can move the pedal down and hold the slave in place you have your failure. somewhat hard to do this on the c4 due to the placement and design of the slave.
with the age these cars are it's very common for them to be failing now.
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