clutch going out? - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 02-12-2014, 05:47 PM   #1
Jeeper
 
TJTurk2000's Avatar
 
Join Date: Aug 2011
Posts: 28
clutch going out?

sup everyone, its been a while since my last post around these parts.

Anyways, I'm no expert on the way clutches function but I'm worried that mine may be going out.

I drive a 2000 TJ (hence my username, go figure) manual transmission of course. the previous owner took very good care of the Jeep, as do i, but i havent the slightest clue when the last time the clutch was replaced.

Switching gears is not as smooth as it should be, in fact its kind of abrupt when i take pressure off the clutch pedal. and theres also difficulty when putting the stick shift into gear from neutral.

Any insight would be very helpful

TJTurk2000 is offline   Quote Quick Reply
Old 02-12-2014, 07:04 PM   #2
Supporting Member

WF Supporting Member
 
Water Dog's Avatar
 
Join Date: Mar 2011
Location: Roseville, CA
Posts: 5,285
Images: 11
Could be. How many miles on the Jeep?

__________________
Dennis
Water Dog is offline   Quote Quick Reply
Old 02-12-2014, 09:07 PM   #3
Jeeper
 
Joxwar's Avatar
 
Join Date: Oct 2013
Location: Chicago Burbs
Posts: 31
I just had to have the clutch changed on my 2001, 150k miles. If the face of the clutch is getting glazed or smooth then it will actually be really easy to shift (was my recent experience) and the vehicle will start revving up when you let off the clutch as the clutch begins to slip more and more. Sounds more like the clutch isn't letting go which could have to do with a lack of I don't know the technical term, either your pedal is not able to go down far enough because it has too much slack or there's something else I forgot... If you end up taking it apart you usually just replace the clutch because it's older and way too much work not to go ahead and do that.
__________________
Used to have a stressful commute to work in my car, now I go on relaxing adventures to work in my Jeep.Unless it's broken...
Joxwar is offline   Quote Quick Reply
Old 02-12-2014, 10:03 PM   #4
Jeeper
 
tbensor's Avatar
 
Join Date: Feb 2012
Posts: 1,145
Quote:
Originally Posted by TJTurk2000 View Post
sup everyone, its been a while since my last post around these parts. Anyways, I'm no expert on the way clutches function but I'm worried that mine may be going out. I drive a 2000 TJ (hence my username, go figure) manual transmission of course. the previous owner took very good care of the Jeep, as do i, but i havent the slightest clue when the last time the clutch was replaced. Switching gears is not as smooth as it should be, in fact its kind of abrupt when i take pressure off the clutch pedal. and theres also difficulty when putting the stick shift into gear from neutral. Any insight would be very helpful
could be the slave cylinder
__________________
My Toys
2003 RED Jeep Wrangler X - Can't stop adding stuff and updating.
2014 White Jeep Liberty Sport
2011 Carbon Black GMC Yukon Denali
2007 Black GMC Sierra 2500HD 4x4 Duramax/Allison
2007 Keystone Laredo 284BHS TT
tbensor is offline   Quote Quick Reply
Old 02-13-2014, 06:05 AM   #5
Newb
 
Join Date: May 2013
Location: North lake tahoe
Posts: 10
make sure you have fluid in your transmission. Do you have any noise coming from the rear end? if you have fluid, and no noise in the rear end, then it's your clutch.
erick101avn7 is offline   Quote Quick Reply
Old 02-13-2014, 08:02 PM   #6
Jeeper
 
Majnoon's Avatar
 
Join Date: Apr 2013
Location: Springfield Missouri
Posts: 3,144
Quote:
Originally Posted by tbensor View Post
could be the slave cylinder
x 2
Majnoon is offline   Quote Quick Reply
Old 02-13-2014, 08:52 PM   #7
Supporting Member

WF Supporting Member
 
Water Dog's Avatar
 
Join Date: Mar 2011
Location: Roseville, CA
Posts: 5,285
Images: 11
Quote:
Originally Posted by tbensor View Post
could be the slave cylinder
Quote:
Originally Posted by Majnoon View Post
x 2
X3...or the master cylinder.
__________________
Dennis
Water Dog is offline   Quote Quick Reply
Old 02-22-2014, 02:42 PM   #8
Jeeper
 
TJTurk2000's Avatar
 
Join Date: Aug 2011
Posts: 28
thanks for the input guys. More info: my rig's got 102K miles, i havent had any abnormal noises coming from the rear end

What exactly is the slave cylinder?
TJTurk2000 is offline   Quote Quick Reply
Old 02-22-2014, 04:05 PM   #9
Jeeper
 
Join Date: Apr 2013
Posts: 2,422
The master is activated by the pedal and it squirts fluid down the line then the fluid moves the piston in the slave (attached to the bell housing of the tranny) and the slave pistons pushes the outboard end of the fork that pushes the throw out bearing into the clutch diaphragm to release the clutch
Digger84 is offline   Quote Quick Reply
Old 02-22-2014, 04:37 PM   #10
Jeeper
 
bluevr6's Avatar
 
Join Date: Oct 2013
Location: WNC
Posts: 643
wanna know if the clutch surface is still good? From a dead stop, accelerate to top of rev range in first and shift directly to top gear. If vehicle lunges or jerks, that is because the friction surface still grabs well. If it is smooth and revs, then the surface is slipping and needs attention. That attention could be a new clutch and pressure plate or it could be the slave needs adjusting.
bluevr6 is offline   Quote Quick Reply
Old 02-22-2014, 06:49 PM   #11
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 31,900
Images: 2
102k miles is not much for a clutch, I'd suspect something else. Could be the slave cylinder which is what actually pushes on the clutch mechanism. It is bolted to the driver's side of the transmission where the transmission is bolted to the bell housing.
__________________
Remember that having a different opinion doesn't also require one to be a jerk when expressing it.

When you have a choice, buy American.

Jerry Bransford is online now   Quote Quick Reply
Old 02-22-2014, 07:03 PM   #12
Jeeper
 
Majnoon's Avatar
 
Join Date: Apr 2013
Location: Springfield Missouri
Posts: 3,144
It also has a black cap. It's right next to your brake fluid. Check the fluid level in it. If it's low not good. Leaking somewhere.
Majnoon is offline   Quote Quick Reply
Old 02-22-2014, 07:56 PM   #13
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 31,900
Images: 2
Quote:
Originally Posted by Majnoon View Post
It also has a black cap. It's right next to your brake fluid. Check the fluid level in it. If it's low not good. Leaking somewhere.
You're describing the master clutch cylinder.
__________________
Remember that having a different opinion doesn't also require one to be a jerk when expressing it.

When you have a choice, buy American.

Jerry Bransford is online now   Quote Quick Reply
Old 02-22-2014, 08:04 PM   #14
Jeeper
 
Majnoon's Avatar
 
Join Date: Apr 2013
Location: Springfield Missouri
Posts: 3,144
Quote:
Originally Posted by Jerry Bransford View Post
You're describing the master clutch cylinder.
Thanks. OP should check fluid in it.
Majnoon is offline   Quote Quick Reply
Old 02-23-2014, 11:48 AM   #15
Jeeper
 
turnbull's Avatar
 
Join Date: Jan 2013
Posts: 254
Quote:
Originally Posted by bluevr6 View Post
wanna know if the clutch surface is still good? From a dead stop, accelerate to top of rev range in first and shift directly to top gear. If vehicle lunges or jerks, that is because the friction surface still grabs well. If it is smooth and revs, then the surface is slipping and needs attention. That attention could be a new clutch and pressure plate or it could be the slave needs adjusting.
Do you have to test it like that? Sometimes the vehicle jerks when I let the clutch out too fast, but that is during normal driving conditions (3k RPMs in one gear and then shift to the next gear). Is that a sign the clutch surface is still good?

I wasn't sure if my clutch was going out or not because when in neutral, if I release the clutch pedal I can hear a slight churning noise from under the vehicle. I figured I shouldn't hear any difference between whether the clutch pedal was fully depressed or fully released.
turnbull is offline   Quote Quick Reply
Old 02-23-2014, 12:42 PM   #16
Jeeper
 
Join Date: Apr 2013
Posts: 2,422
A bad clutch usually starts to slip and usually early on best way to detect is in high gear at freeway speed just mash down on the gas and if even briefly rpm rises without speed change clutch is slipping but if rpm and speedo both have steady related rate increase clutch is not slipping

Other fairly common failure of clutch component is throw out bearing and in quiet vehicle with engine running ( jeep can be moving or stopped) you hear a squeal or rumble when and only when you depress the clutch
Digger84 is offline   Quote Quick Reply
Old 02-23-2014, 01:26 PM   #17
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 31,900
Images: 2
Quote:
Originally Posted by turnbull View Post
... because when in neutral, if I release the clutch pedal I can hear a slight churning noise from under the vehicle. I figured I shouldn't hear any difference between whether the clutch pedal was fully depressed or fully released.
Perfectly normal, you're only hearing the transmission's input shaft and bearings being spun by the engine which it does all the time unless you're stepping on the clutch to disengage the engine from the transmission. My previous '97 TJ's AX-15 5-speed transmission did the same thing, I noticed it the first day I drove it home brand-new from the dealer. And I've driven a ton of brand-new Jeeps when picking them up from dealers to install lifts and big tires on them for the dealers, they all did it.
__________________
Remember that having a different opinion doesn't also require one to be a jerk when expressing it.

When you have a choice, buy American.

Jerry Bransford is online now   Quote Quick Reply
Old 02-23-2014, 05:36 PM   #18
Jeeper
 
turnbull's Avatar
 
Join Date: Jan 2013
Posts: 254
Quote:
Originally Posted by Jerry Bransford View Post
Perfectly normal, you're only hearing the transmission's input shaft and bearings being spun by the engine which it does all the time unless you're stepping on the clutch to disengage the engine from the transmission. My previous '97 TJ's AX-15 5-speed transmission did the same thing, I noticed it the first day I drove it home brand-new from the dealer. And I've driven a ton of brand-new Jeeps when picking them up from dealers to install lifts and big tires on them for the dealers, they all did it.
Well I appreciate it, that makes me feel a lot better. This is the first manual vehicle I have driven so I wouldn't know what sounds are good/bad. Also I have burned the clutch a few times (I could smell it), so I was worried it might need to be replaced.
turnbull is offline   Quote Quick Reply
Old 02-23-2014, 07:22 PM   #19
Jeeper
 
bluevr6's Avatar
 
Join Date: Oct 2013
Location: WNC
Posts: 643
Quote:
Originally Posted by turnbull View Post
I wasn't sure if my clutch was going out or not because when in neutral, if I release the clutch pedal I can hear a slight churning noise from under the vehicle. I figured I shouldn't hear any difference between whether the clutch pedal was fully depressed or fully released.
Throw out bearing.
bluevr6 is offline   Quote Quick Reply
Old 03-08-2014, 07:58 AM   #20
Newb
 
Marleesdaddy's Avatar
 
Join Date: Feb 2014
Posts: 9
Quote:
Originally Posted by Digger84 View Post
The master is activated by the pedal and it squirts fluid down the line then the fluid moves the piston in the slave (attached to the bell housing of the tranny) and the slave pistons pushes the outboard end of the fork that pushes the throw out bearing into the clutch diaphragm to release the clutch
Could the master or slave cylinder be why my clutch won't engage until Its almost released? 133k (don't know if clutch is original) no noise not difficult to shift, just find myself riding the clutch when backing up a hill because the d thing won't engage until the last inch and a half of the pedal. Again wont engage until almost released.
Marleesdaddy is offline   Quote Quick Reply
Old 03-08-2014, 11:24 PM   #21
Jeeper
 
Majnoon's Avatar
 
Join Date: Apr 2013
Location: Springfield Missouri
Posts: 3,144
Quote:
Originally Posted by Marleesdaddy View Post
Could the master or slave cylinder be why my clutch won't engage until Its almost released? 133k (don't know if clutch is original) no noise not difficult to shift, just find myself riding the clutch when backing up a hill because the d thing won't engage until the last inch and a half of the pedal. Again wont engage until almost released.
No. It's just old and worn. If the bearing don't go first eventually it will never engage. It's like brake pads kinda. More wear more pedal travel before it releases brakes more travel before they engage. Basically wear moves the disc further from the throw out bearing. Requiring more pedal to reach it.
Majnoon is offline   Quote Quick Reply
Old 03-09-2014, 11:37 PM   #22
Newb
 
Marleesdaddy's Avatar
 
Join Date: Feb 2014
Posts: 9
Quote:
Originally Posted by Majnoon View Post

No. It's just old and worn. If the bearing don't go first eventually it will never engage. It's like brake pads kinda. More wear more pedal travel before it releases brakes more travel before they engage. Basically wear moves the disc further from the throw out bearing. Requiring more pedal to reach it.
That Makes sense. I can't see any evidence that my clutch is slipping yet. (If I push the throttle even slightly in a higher gear, she accelerates) but since this is now my dd and depend on her, should I order a clutch and install? Or wait til it goes out.
Marleesdaddy is offline   Quote Quick Reply
Old 03-09-2014, 11:47 PM   #23
Jeeper
 
Majnoon's Avatar
 
Join Date: Apr 2013
Location: Springfield Missouri
Posts: 3,144
I would wait till there are signs. I get free 2
Day shipping on amazon with prime. Wouldn't hurt to have one laying around waiting neither. Up to you I suppose. I had brakes squeak for no reason once. Bought pads seen everything was good when I took off the calipers and then they sat over a year until I needed them. Either way I would have bought brake pads.
Majnoon is offline   Quote Quick Reply
Old 03-09-2014, 11:58 PM   #24
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 31,900
Images: 2
Quote:
Originally Posted by bluevr6 View Post
Throw out bearing.
That churning noise he asked about that only occurs when the clutch is released is absolutely normal and absolutely not caused by the throwout bearing. The throwout bearing only goes into operation and starts spinning only after the clutch pedal is pushed down. The throwout bearing is doing nothing if the clutch pedal isn't being stepped on.

__________________
Remember that having a different opinion doesn't also require one to be a jerk when expressing it.

When you have a choice, buy American.

Jerry Bransford is online now   Quote Quick Reply
Reply

Tags
clutch , transmission

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




» Featured Product

All times are GMT -5. The time now is 01:14 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC