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Originally Posted by schellingr
Can a mechanically inclined person here explain in detail why the CSC fails and then goes back to normal?, then fails again (pedal to the floor) and comes back after a while? Sorry not a motorhead here.
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My understanding is that as the fluid gets dirty, the dirt particles get past the seals on the CMC and/or CSC, allowing air pockets into the clutch system. This is the reason that some people just get a half dead pedal instead of full on failure. Once the seals deteriorate enough, you get stranded. This is also the reason you need to change both the CMC and the CSC at the same time because dirty fluid from the old part can compromise the new part if you just replace one. I also suspect hot fluid will aid the fluid's ability to get past the seals as the fluid is thinner.