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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH996 Strange Clutch Problem
Leading reported evidence
Replace failing slave cylinder ~1 mo and 1000 miles ago
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
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0
Unsuccessful attempts
1
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Read evidence and context
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Discussions that performed work without a confirmed outcome
1
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Performed · outcome unconfirmed · Original poster
I replaced a failing slave cylinder ~1 mo and 1000 miles ago.
Leading evidence: 'Replace failing slave cylinder ~1 mo and 1000 miles ago' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace )' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion · Original poster
-Bled all fluid, had a thought about moisture in fluid leading to lowered boiling point (unlikely given dry climate but easy to replace)
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Suggestion
I would bleed it again, and if the problem persists, change the slave cylinder.
Use some outside opinions- am having a strange clutch problem
Suggestion or failed attempt
No successful repair reported for this finding.
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Reported fixes
0
Unsuccessful attempts
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Discussions
Read evidence and context
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Suggestion · Original poster
Could use some outside opinions- am having a strange clutch problem with my '99 996:
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4 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Pelican Parts: 1 discussions
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Could use some outside opinions- am having a strange clutch problem with my '99 996:
Two days ago I thought I felt some strange behavior in the clutch. When driving again today I confirmed that something doesn't appear to be right. ONLY when driving, the clutch pedal will get soft to ~1/2 travel for
one stroke
if I don't use the clutch over the course of a few minutes. It ultimately still engages, but offers almost no resistance until ~halfway down. When I cycle a second time right away, the pedal is instantly solid again. In stop and go driving nothing appears wrong, but when cruising on the highway or side roads without shifting (no influence from gear selection) that is when it manifests itself. The strange part is the pedal remains rock solid when sitting idling or when the car is off (engine hot or cold).
Time history of recent work:
I replaced a failing slave cylinder ~1 mo and 1000 miles ago. Also replaced the master at the same time. New DOT4 fluid. Seamless performance from install until this
Troubleshooting done so far:
-With the car off, I have held the pedal part way for several minutes but the pedal remains solid. Whenever the car is off, including sitting overnight, the pedal is solid on startup. Thought was if there was a leak holding pressure in the system would cause it to bleed down
-Bled all fluid, had a thought about moisture in fluid leading to lowered boiling point (unlikely given dry climate but easy to replace)
I'm usually good at troubleshooting but am at a bit of a loss on this. Feasibility of some type of internal master/ slave failure? Pressure plate fingers cracked? Disc worn? Clutch assist spring gone bad? (but why the soft pedal only when driving)
Should have bought Porsche branded. One of your cylinders is probably leaky. I would bleed it again, and if the problem persists, change the slave cylinder.
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