Drivetrain Tech General discussion of drivetrain for the Ford Ranger.

I'm at a loss and desperately need help... Clutch Master Cylinder

Thread Tools
 
Search this Thread
 
Old Dec 7, 2009
  #1  
lostguitarist's Avatar
Thread Starter
|
Member
Joined: Apr 2008
Posts: 44
Likes: 0
From: Nashville TN
Icon4 I'm at a loss and desperately need help... Clutch Master Cylinder

I replaced the Clutch Master Cylinder today and it's all connected correctly... I bled the lines from the bleeder valve on the drivers side of the clutch case.. I opened it, had somone push the pedal to the floor, closed the valve, then had them release the pedal.. Fluid is shooting out each time and the level has never dropped below the half point in the resavoir(sp).. the pedal builds to about half the pressure it used to have during this process, but as soon as I go to crank it over and put it in gear, NO PRESSURE, it won't even try to go into gear.. Any assistance is greatly appreciated.
 
Reply
Old Dec 7, 2009
  #2  
Fx4wannabe01's Avatar
RF Veteran
iTrader: (23)
Joined: May 2005
Posts: 21,721
Likes: 16
From: Boring, Oregon
open the bleeder w/o pressing the pedal down. let it gravity bleed. then do the pedal down again, holding it there, open the bleeder and fluid will squirt. watch your eyes. gravity bleed again.

now go back into the truck and push the pedal. it may be somewhat soft at first, but will eventually self bleed itself as designed(but poorly). Or to accelerate this, pump the pedal several times like crazy. Had to do that to two of my buddy's totally dry systems(auto to manual swaps)

If that fails and never gets better, start considering replcing that slave cylinder.
 

Last edited by Fx4wannabe01; Dec 7, 2009 at 07:24 PM.
Reply
Old Dec 7, 2009
  #3  
My91Ranger's Avatar
Member
iTrader: (1)
Joined: Apr 2007
Posts: 2,254
Likes: 5
From: Roseville, Michigan
Another think you can try and do is with the bleeder closed push the pedal to the floor hold it there for a few seconds then let it go real quick so it springs back hopefully quickly. Do this several times and usually you can see bubbles come up into the reservoir as they are purged from the lines.
 
Reply
Old Dec 7, 2009
  #4  
lostguitarist's Avatar
Thread Starter
|
Member
Joined: Apr 2008
Posts: 44
Likes: 0
From: Nashville TN
It seems to be a little better, still takes about 3-4 inches before feeling any resistance and still not much resistance at that, but atleast it's dis-engaging the clutch now (barely).. I'll keep messing with it.. I was hoping the one I installed wasn't a POS.. thanks for the help.
 
Reply
Old Dec 7, 2009
  #5  
Redrocket's Avatar
Member
iTrader: (6)
Joined: Jan 2007
Posts: 1,993
Likes: 0
From: Waynesville n.c
i use one of em little vac pumps to blead mine i never have to touch the pedal
 
Reply
Old Dec 7, 2009
  #6  
BOBO's Avatar
Member
Joined: May 2007
Posts: 417
Likes: 0
From: Mundelein, ill
another thing you can do is pull the master off the fire wall while still connected to everything. turn it upside down and pump while upside down because with they angle it's at on the fire wall and the way the hoses connect to it at can trap air at the very top. i did it like that and it helped alot.
 
Reply
Old Dec 8, 2009
  #7  
lostguitarist's Avatar
Thread Starter
|
Member
Joined: Apr 2008
Posts: 44
Likes: 0
From: Nashville TN
I'll try that, nothing else has worked so far, and I figure it has to be something with the new cylinder, cause everything worked fine before it was replaced and the only reason I changed it was because it had a small leak. Thanks for the info.. that makes sense, because it's squirting fluid at the bottom so i figured there had to be trapped air somwhere at the top.
 
Reply
Old Dec 8, 2009
  #8  
lostguitarist's Avatar
Thread Starter
|
Member
Joined: Apr 2008
Posts: 44
Likes: 0
From: Nashville TN
Bobo, that was it... took it out turned it upside-down, pushed the rod in, instant bubbles came up.. Installed it again, works perfect.. thanks man
 
Reply
Old Dec 25, 2009
  #9  
BOBO's Avatar
Member
Joined: May 2007
Posts: 417
Likes: 0
From: Mundelein, ill
no problem man im glad it worked out for you!
 
Reply
Old Feb 27, 2020
  #10  
Bradley.howard31's Avatar
Joined: Feb 2020
Posts: 3
Likes: 0
From: Denham Springs
Originally Posted by Redrocket
i use one of em little vac pumps to blead mine i never have to touch the pedal
where do I connect the vac pump? I have the pleasure of replacing my master cylinder in the morning.
 
Reply
Old Feb 27, 2020
  #11  
Jeff R 1's Avatar
Member
Joined: Jul 2016
Posts: 2,022
Likes: 44
From: BC Canada
Originally Posted by Bradley.howard31
where do I connect the vac pump? I have the pleasure of replacing my master cylinder in the morning.
The vacuum pump is connected to the bleed nipple on the slave cylinder down where it pokes out of the transmission bell housing.

Normally the MC and line are pre-blead before installation, so one simply gravity bleeds the system with out the use of a vac pump.
it should still work though.

 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
DjMaestro
2.9L & 3.0L V6 Tech
9
Nov 4, 2019 10:21 AM
SaintBoondock
Drivetrain Tech
7
Oct 18, 2019 06:34 PM
FordF350
Drivetrain Tech
2
Sep 17, 2017 11:40 AM
riff raff
DOHC - 2.3L Duratec / Mazda L Engines
1
Aug 23, 2017 10:31 PM
Atimm693
Drivetrain Tech
5
Jun 25, 2017 03:28 PM




All times are GMT -6. The time now is 01:42 AM.