🔧 Technical Clutch pedal does not return all the way - 2016 Mustang 5.0

[WindyCity_5.0]

Yesterday I was driving around (2016 5.0). I wasn't driving it hard or anything. While shifting, the pedal would not return all the way. I was able to pull it back up with my foot and it worked fine afterwords.
Alot of forums, have information on this. Some are saying to replace the line from the reservoir to the Trans with a braided line. Other s say to replace the slave cylinder.
Anyone else have this issue before? What was the fix?

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[blakbearddelite]

I had that happen to me when the blower became too much for my stock clutch. Though mine continued to behave erratically afterwards and made weird hissing noises. Do you have a power adder?

I replaced the stock clutch with something beefier and I also upgraded to a braided line. Hopefully yours is a much cheaper fix.

 

[Mook]

01bluesnake Jeffs FRC

 

[CMNTMXR57]

Can't speak to the mustangs, but the line issue is common on the GM clutches. There is a restriction in the line right where it goes in to the slave. What happens, is under repeated, quick actuation, because of this restriction, fluid doesn't back flow to the master to allow for proper pressure on the next depression of the clutch pedal.

So many replace the line. Some will do a "drill out" mod where they disconnect the line at the slave, insert a drill bit (on a drill obviously) and drilling through the restriction, then flushing the line before reconnecting.

Here, more in depth;

Drill mod Review: What not to do & End resluts - LS1TECH - Camaro and Firebird Forum Discussion

Manual Transmission - Drill mod Review: What not to do & End resluts - Ok, i just finished up with my drill mod today, if you dont know what the drill mod is, its basically drilling out a restriction in your clutch master to slave cylinder line. So ive never really worked on my clutch system...

ls1tech.com

 

[Shawn1112]

I had that happen to me when the blower became too much for my stock clutch. Though mine continued to behave erratically afterwards and made weird hissing noises. Do you have a power adder?

I replaced the stock clutch with something beefier and I also upgraded to a braided line. Hopefully yours is a much cheaper fix.

No power adder that I'm aware of

 

[WindyCity_5.0]

No power adder..

 

[Turbocharged400sbc]

Look at the clutch pedal there are a couple of over centering return Springs on most pedals. one or both of them may have broken and the pedal is not easily returning to home position.

This is something you can check with a flashlight to verify it's not the issue before you go chasing a diagnostic far more involved and expensive

 

[01bluesnake]

This was a real known issue with the 11-14 mustangs, the plate just couldn't sustain higher rpm then stock, and would get stuck down on a shift. As for the S550, ford went to a different clutch that I regularly can take to 8k with no issue. Make sure someone didnt pull out the clutch pedal assist spring. Other then that, clutch is likely been overheated one too many times, and needs replacement.

 

[Jeffs FRC]

Time for a new clutch my man! Bring it over to Drew and let him install the same clutch he just put in my car.

 

[WindyCity_5.0]

Odd thing is that I have had zero signs of clutch issues prior to this. Car has been perfect. I did notice when I got home, that one of the hoses on the reservoir was almost off the nipple on the reservoir. I snapped it back on, and tested the car, and didn't have an issue.

 

[Bru]

Edited thread title (for visibility, clarity).

Good luck