ZF5 Clutch Issues
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Joined: Apr 2020
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From: Courtenay BC
ZF5 Clutch Issues
I recently swapped from a 4 speed to a ZF5 and the transmission and clutch where working great. I then had to pull the motor to do some work (4.9l) and after installing the motor again the clutch no longer works. The strange part is that when I first jump in I'll have no clutch activation, then after pumping the pedal 30 or so times the clutch will work for a few hours then slowly fade away and I'll need to pump it back up. Does anyone have any experience with this? And also its not losing any fluid or low on any fluid.
Logistics Pro
Joined: Mar 2011
Posts: 4,197
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From: Central Wisconsin
Has this master/slave combination been problematic the entire time you've had it?
If it has never worked, I would guess that there is either air in it still, or one of them are faulty.
If it has never worked, I would guess that there is either air in it still, or one of them are faulty.
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New User
Joined: Apr 2020
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From: Courtenay BC
I had some issues bleeding it when I first installed it but that was because I was being an idiot and forgot to take rubber cap out of the master cylinder. I took it to a shop and had them bleed it and and it worked great until I pulled to motor.
Logistics Pro
Joined: Mar 2005
Posts: 4,698
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From: Mexico, Missouri
Is the slave/master cylinder a parts store brand or are they Motorcraft?
Lots of folks use the parts store brand and they fail sooner than later. Many here recommend Motorcraft for this replacement.
And as was suggested, nothing got crimped/smashed with the engine swap?
Lots of folks use the parts store brand and they fail sooner than later. Many here recommend Motorcraft for this replacement.
And as was suggested, nothing got crimped/smashed with the engine swap?
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New User
Joined: Apr 2020
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From: Courtenay BC
Heres an update, I looked around and the hose was fine. Somehow the clutch has fixed itself, Its just working now. I don't completely trust it after this happened but Im using it for now, I'll pull the system apart when I pull the transmission again which should be soon. Thanks for the help.
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Tuned
Joined: Dec 2018
Posts: 454
Likes: 97
From: SE WI
In my experience, things don't fix themselves, they just wear down to the "new normal" haha.
If I had to guess, somehow in the process air was introduced into the system, or perhaps a rogue air bubble finally made its way out. I would definitely wipe everything down, drove 50 miles or so, and see if there are any wet hydraulic fluid spots anywhere on the line or connections.
If I had to guess, somehow in the process air was introduced into the system, or perhaps a rogue air bubble finally made its way out. I would definitely wipe everything down, drove 50 miles or so, and see if there are any wet hydraulic fluid spots anywhere on the line or connections.
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