08-10 SS Turbocharged General Discussion Discuss the 2008 - 2009 Chevy Cobalt SS Turbocharged. On sale since the second quarter of 2008.

Clutch line - error in Helms manual or wrong part on my car?

Thread Tools
 
Search this Thread
 
Old Jan 13, 2010 | 08:28 PM
  #1  
Fulton 1's Avatar
Thread Starter
New Member
iTrader: (1)
 
Joined: 02-16-09
Posts: 65
Likes: 0
From: WA
Question Clutch line - error in Helms manual or wrong part on my car?

From what I've been able to gather, the SS/TC has the MU3 code transaxle and not the M86. If I'm correct on this, then I noticed something strange in the Helms manual today. My MY2009 manual, under clutch master cylinder replacement section, shows two separate procedures (see pics below) - one for the MU3 and one for the M86. The steps look about the same, but the illustrations are different. The major difference between the two being the clutch line (labeled as item '2' in the illustrations). Now the weird thing is that my SS/TC has the clutch line shown in the M86 illustration - the one with the knob-looking coupler that I've circled in red. So, either the Helms manual has the illustrations mixed up or my car has the wrong clutch line installed from the factory. I'm interested in this because I've been having these mysterious, recurring clutch master cylinder problems and now I'm wondering if, just maybe, I might have an incorrect part installed.

I'd really appreciate if some of you guys with SS/TC's could please verify whether you have the coupler that I've circled below. It should be easy to spot - the thing is black, looks like the knob on your water faucet and sits just outboard of the power brake booster and inboard of the driver side strut tower - behind the fuse box. I'll try and get a pic of it tomorrow if I can. Alternatively, if someone KNOWS which is the correct clutch line and can attest to the correctness (or lack thereof) of the manual that would be appreciated as well.

Thanks, guys...

This is, according to the Helm's manual, the way the SS/TC clutch line should look (item '2'):


This is the way mine looks (see circled in red), but is supposed to be the 2.2-2.4L version as I understand it:
Reply
Old Jan 15, 2010 | 07:44 PM
  #2  
TorqueSSter's Avatar
Junior Member
 
Joined: 05-29-09
Posts: 458
Likes: 1
From: Houston Texas
Unhappy That has got to be one of the worst spots to look at I can imagine !

Best I can see - with a flashlight, and not the whole thing at once ! is that mine looks like the illustrations that you show for the MU3.

Since there is an incredible mass of wiring looms right there , and the fuse box blocks even a semi direct view, I suppose it's possible that round dealie is there.

Best I can tell, though, it is not.

If worse comes to worse & I am wrong, well this post serves as a TTT !

Good Luck !


Britt
Reply
Old Jan 15, 2010 | 09:50 PM
  #3  
Fulton 1's Avatar
Thread Starter
New Member
iTrader: (1)
 
Joined: 02-16-09
Posts: 65
Likes: 0
From: WA
Britt,
Thanks a lot for taking the time to look - I do appreciate it. Unfortunately, I don't know anyone else in my area with one of these cars that I can compare it to and the only one that was on my local dealer's lot has been sold.

After some more thought, I really should have taken a pic before I posted this up since its hard to tell from the manual what the heck you're looking for. My excuse is that I've just been really busy and its been pouring rain here . I finally did get a pic, though. Circled in red is the round thingy. Its a little easier to see if you pop the cover off the fusebox. It does rotate, though, so it might not be as visible as mine is (I reached back in there with my hand and rotated it around so that it'd be easier to distinguish).

Reply
Old Jan 16, 2010 | 12:32 PM
  #4  
TorqueSSter's Avatar
Junior Member
 
Joined: 05-29-09
Posts: 458
Likes: 1
From: Houston Texas
Question I don't know how you got that good of a picture !

I tried - my crappy camera won't do it - all I get is fuzzy wiring looms.

At any rate, even in daylight , with the cover off & a flashlight I can't see much, but mine looks more like that 1st illustration.

Any possibility build dates might affect that ?

I believe mine was built in December of ' 08.


What does that thing do, anyways ?

Britt
Reply
Old Jan 16, 2010 | 01:06 PM
  #5  
Maven's Avatar
Senior Member
iTrader: (1)
 
Joined: 05-25-05
Posts: 7,661
Likes: 7
From: Southern New Jersey
Thats the antiabuse valve. Its not possible for the MU3 and M86 parts to be swapped so stop worrying.
Reply
Old Jan 16, 2010 | 06:16 PM
  #6  
Fulton 1's Avatar
Thread Starter
New Member
iTrader: (1)
 
Joined: 02-16-09
Posts: 65
Likes: 0
From: WA
Confirmed with the parts guy today. The manual has the incorrect illustration(s).

Maven, what exactly does this antiabuse valve do (beyond the obvious, of course)?
Reply
Old Jan 17, 2010 | 01:31 PM
  #7  
Maven's Avatar
Senior Member
iTrader: (1)
 
Joined: 05-25-05
Posts: 7,661
Likes: 7
From: Southern New Jersey
The antiabuse valve limits how quick the clutch will re engage when you let go of the pedal, it restricts fluid flow back from the slave cylinder. So even if you side step the clutch it will only apply the clutch as fast as that valve lets, meaning the clutch will slip more and not instantly grab, they did this to help reduce the amount of broken trans' and axles.

The book isnt wrong, its just not current. That is exactly what some F35 clutch lines look like. you can tell its the proper illustration because of the connection at the slave, and the axle picture of the trans itself. The reason yours is different is because it was a running change in production, all new replacement lines look that now as well.
Reply
Old Jan 17, 2010 | 06:22 PM
  #8  
Fulton 1's Avatar
Thread Starter
New Member
iTrader: (1)
 
Joined: 02-16-09
Posts: 65
Likes: 0
From: WA
Originally Posted by Maven
The antiabuse valve limits how quick the clutch will re engage when you let go of the pedal, it restricts fluid flow back from the slave cylinder. So even if you side step the clutch it will only apply the clutch as fast as that valve lets, meaning the clutch will slip more and not instantly grab, they did this to help reduce the amount of broken trans' and axles.

The book isnt wrong, its just not current. That is exactly what some F35 clutch lines look like. you can tell its the proper illustration because of the connection at the slave, and the axle picture of the trans itself. The reason yours is different is because it was a running change in production, all new replacement lines look that now as well.
Great info. Thanks, Maven.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
vjoel2011
2.0L LNF Performance Tech
26
Oct 2, 2015 12:11 PM
ashalle2
Drivetrain
31
Sep 16, 2015 10:36 PM
Jacque8080
Problems/Service/Maintenance
3
Sep 9, 2015 09:21 PM
SS_2009_TC
2.0L LNF Performance Tech
18
Sep 4, 2015 10:48 AM




All times are GMT -4. The time now is 08:46 AM.