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Clutch system help.

Old 07-12-2019, 08:58 PM
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Default Clutch system help.

07 JK clutch pedal went soft, managed to drive it home. Replaced the slave cylinder and clutch master cylinder and still no pressure in the pedal. No leaks either.
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Old 07-14-2019, 05:27 AM
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Bled the air from the system
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Old 07-14-2019, 09:20 AM
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Default Clutch issue

I've been bleeding the clutch all weekend… can't seem to get it air free. Tried with an assistant the traditional way, also tried the "iv" trick with a hose and bottle of fluid. Zero pressure. Jeep wont even start because the clutch wont engage. This all started a month or so ago with a random misfire code, so I replaced the following.
Coil pack
Crank case positionong sensor
Vaccum purge valve
oil change too

None of this fixed the misfire so I ordered a new PCM. But the next morning the clutch was on the floor, managed to get it home then I replaced the following.

Slave cylinder
Clutch master cylinder
Hard line between the 2

Not sure if im bleeding wrong or what… im about to throw in the towel and call a tow to the mechanic.

07 sahara JK 120k mi. Doesn't get abused off road, but I do live in Fairbanks Alaska so it gets damn cold here in the winter.

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Old 07-14-2019, 06:34 PM
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I've found for bleeding the clutch that you want the master cylinder absolutely brimming with fluid and putting the rear end up in the air can help get air out of the slave. Bleeding the clutch takes slow presses on the pedal, not the rapid pumps like brakes. Was your master pre-bled? Someone else had a similar issue and replaced the master but found out they introduced air into the system and ended up fighting themselves until they replaced it the second time.
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Old 07-14-2019, 08:32 PM
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Maybe this writeup will help Jump down to the bleeding section.

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