Notices
GT S197 General Discussion This section is for technical discussions pertaining specifically to the V8 variation of the 2005 and newer Ford Mustang.

08 GT - help with leak?

Old 01-09-2019, 08:20 AM
  #11  
jkmhb
Thread Starter
 
Join Date: May 2009
Location: TX
Posts: 15
Default

By the way - I've ordered the parts to remove the intake, change the elbow and hose and add (continuous pressure) hose clamps, and put back together. I will report back the results once the parts arrive and I do the work.
jkmhb is offline  
Old 01-14-2019, 09:30 AM
  #12  
jkmhb
Thread Starter
 
Join Date: May 2009
Location: TX
Posts: 15
Default


Got around to fixing the heater hose leak (under the intake manifold) this weekend. It had been leaking a bit for a long time. The elbow had a part that just fell off when I went to take it off. I would recommend checking this if you have a 4.6L GT. No more leaks for now.

Last edited by jkmhb; 01-14-2019 at 09:34 AM.
jkmhb is offline  
Old 01-14-2019, 09:31 AM
  #13  
jkmhb
Thread Starter
 
Join Date: May 2009
Location: TX
Posts: 15
Default

I still need to check if the trans fluid is low. Engine oil and trans fluid are soon to be due.
jkmhb is offline  
Old 01-17-2019, 08:04 AM
  #14  
jkmhb
Thread Starter
 
Join Date: May 2009
Location: TX
Posts: 15
Default

So now that the coolant leak is fixed, the "other" leak is more obvious. It is kind of hard to tell, but it has leaked a fair amount. This is not engine oil - engine oil is darker and smells kind of rancid.
This is more clear, and does not smell at all. So it is either manual transmission fluid (I don't remember what the Redline looked or smelled like, and I no longer have the container), or hydraulic clutch fluid (but when that is new, it has kind of a sweet smell which on the floor it does not have).
Any ideas? I would think I'm not the first to have this leak!

jkmhb is offline  
Old 01-17-2019, 09:49 AM
  #15  
Dino Dino Bambino
3rd Gear Member
 
Dino Dino Bambino's Avatar
 
Join Date: Oct 2014
Location: Cyprus (EU)
Posts: 874
Default

Yup, I'd say it's definitely clutch hydraulic fluid. It's most likely coming either from the slave cylinder (bad news 'cause you'd have to drop the tranny to replace it) or from a worn o-ring at the tranny end of the hydraulic line (better news 'cause it's accessible and cheap to replace). Check the hydraulic fluid reservoir and see if it's low. If you still have the stock plastic hydraulic line, now's probably a good time to upgrade to a steel braided unit.

Last edited by Dino Dino Bambino; 01-17-2019 at 09:51 AM.
Dino Dino Bambino is offline  
Old 01-19-2019, 12:13 PM
  #16  
jkmhb
Thread Starter
 
Join Date: May 2009
Location: TX
Posts: 15
Default

Thank you Dino! I got up under the car this morning and the trans fluid definitely has a red tint to it - so I would say it is the hydraulic clutch fluid. It is not leaking from any obvious connections of the lines (which would rule out o-ring connections), but rather near a bolt on the lower bell housing, passenger side. It is Not leaking from the large hole in the bell housing.
Here are some pics of the leak itself, the trans fluid, and the master cylinder reservoir, I marked the fluid level with a red mark (it shows lower in this picture because the car is on jack stands).
So my last question - if it is leaking like this, why does the clutch seem to operate fine? Is this a common problem? Thanks!




Last edited by jkmhb; 01-19-2019 at 12:17 PM.
jkmhb is offline  
Old 01-19-2019, 01:09 PM
  #17  
Dino Dino Bambino
3rd Gear Member
 
Dino Dino Bambino's Avatar
 
Join Date: Oct 2014
Location: Cyprus (EU)
Posts: 874
Default

The clutch will operate fine until either the fluid level drops so low that the hydraulic system begins to draw air, or the slave cylinder lets go altogether and the pedal suddenly goes soft.
Dino Dino Bambino is offline  
Old 01-22-2019, 08:52 AM
  #18  
jkmhb
Thread Starter
 
Join Date: May 2009
Location: TX
Posts: 15
Default

Thank you! So I'm thinking it is not so urgent as long as I keep it full. It's going to be a big job.
jkmhb is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ForrestB
4.6L (1996-2004 Modular) Mustang
3
05-20-2009 12:19 AM
CyprusMustang
Classic Mustangs (Tech)
18
04-05-2009 12:36 PM
JayBanion
5.0L General Discussion
17
03-14-2009 03:04 PM
Geofux
V6 (1994-2004) Mustangs
0
10-29-2007 10:44 PM
Jackies Stang
2005-2014 Mustangs
1
03-30-2007 03:39 PM


Thread Tools
Search this Thread
Quick Reply: 08 GT - help with leak?


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.