Clutch or Something else

Discussion in 'Drivetrain, Exhaust and Electrical' started by Hambone, Feb 21, 2018.

  1. Hambone

    Hambone TMO Race

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    Hello all! We all know of the high RPM shifting lockouts with the Boss. I have had my share normally at the 6,000- 7,000 range but lately it is getting hard to shift in anything above 5,000. I have never had a clutch fail in any cars I have owned(all mustangs) so I don't really know what to look for. The other odd thing is when I get in the car after it has sat for a few hours I cannot even get it into reverse. The one thing I have noticed is that the clutch pedal does not travel all the way back up now and if I pull it up with my toe and then depress it again it will shift properly. Am I crazy or does the pedal travel interfere with the shifting? Or is this just a well used clutch going bad?The car currently has 86,000 miles on it.
     
  2. barspen

    barspen TMO Advanced

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    My Throw Out Bearing exploded at 75,000 miles. Sounded like a bag of rock under the car before it finally gave out and needed a tow. At 86K, pretty good chance you have a TOB or clutch issue.

    [​IMG]
     
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  3. Hambone

    Hambone TMO Race

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    No strange noises yet. Just can't wrap my head around what the upward travel of the pedal has to do with getting it into gear. I don't want to replace the clutch and then have the same issue. This is a daily driver and I don't have any issues when I drive like a normal person but the not going into gear while parked is concerning.
     
  4. TMSBOSS

    TMSBOSS TMO Addict

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    If you are having trouble shifting into reverse and need to pull the pedal up manually. Seek help. Clutch is on the way out and wearing others parts rapidly as it does so. If you wait for noises, they will come. Usually signaling ADDITIONAL costs. 86K for mileage is not bad on a clutch.
     
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  5. kcbrown

    kcbrown TMO Intermediate

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    I'm skeptical that the issue is the clutch itself. The clutch material will wear over time, but that will eventually cause it to fail to completely engage.

    But the problem here is that he can't disengage reliably. That means the issue is with the throwout bearing or the clutch master cylinder, or possibly the fluid. The clutch itself is the last place I'd look for diagnosing trouble like this. But with that many miles, the clutch itself probably isn't far behind, so it's likely worth replacing it and the TO bearing all at once, while also taking a hard look at the master cylinder.


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  6. k98dave

    k98dave TMO Addict

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    Could also be the clutch main/slave cylinder failing. All of this should be replaced with a new pressure plate/disc.
     
  7. BigTaco

    BigTaco TMO Addict

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    Regardless of what the issue is (clutch or slave) you have to remove all of the components regardless as far as labor is concerned. Maybe a bit less if it’s just the slave but taking the mileage into account, just replace the clutch and slave. Done deal...
     
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  8. Hambone

    Hambone TMO Race

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    So I was looking under the dash at the pedal and noticed it has play side to side. Not much but noticeable. I also noticed 1 of the white plastic sleeves under one of the springs looks funky. Hard to get a picture. Also with the pedal shifted the rod going through the firewall is rubbing on the outer sleeve possibly causing the friction.
     
  9. Hambone

    Hambone TMO Race

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    I counted my shifts on the way home today or at least tried and came up with about 150. That comes out to around 500,000 since I drove off the lot. Wow I am surprised it has not given up yet. Does anyone have directions on removing the clutch pedal so I can look at everything?
     
  10. blacksheep-1

    blacksheep-1 TMO Addict

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  11. Hambone

    Hambone TMO Race

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    It’s a 2012 Boss.Yeah I am definitely going to upgrade but just want to make sure I do it all at once. I am trying to get it to last until the end of the year because it’s either replace the clutch or renew my Rams season tickets.
     
    Last edited: Mar 6, 2018
  12. Hambone

    Hambone TMO Race

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    Update. So the clutch pedal assy. finally failed. The rod connected to the clutch pedal seperated from the eyelet. I removed the assy. and found that there is a bushing on the rod that has the spring on it at the top of the clutch pedal. The bushing looks like it was welded or brazed to the pedal but had since cracked and seperated. That was causing the slop in my pedal. Ordered a new assy. and the new one does not even come with the upper spring on the shaft. It only comes with the spring at the side of the pedal that some people are calling the clutch assist spring and removing. Everything works perfect so far. I also added a seperate clutch fluid reservoir.
     
  13. 302BOB

    302BOB TMO Addict

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    At least you're not a NY Giant fan, like me. That would make the choice much simpler...read on...[​IMG]
     
  14. Hambone

    Hambone TMO Race

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    That’s just sad but true. Drove to work and back with no issues. It feels like a new car. The pedal has a completely different feel now and shifts are smooth. Have not tried anything above 7000 though.
     
  15. TMSBOSS

    TMSBOSS TMO Addict

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    Night Stalker?
     
  16. Hambone

    Hambone TMO Race

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    Army aviation unit not crazy guy going around LA in the 80’s.
     
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  17. TMSBOSS

    TMSBOSS TMO Addict

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    Little birds, blackhawks or chinooks? DOL
     
  18. Hambone

    Hambone TMO Race

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    Chinooks. I did avionics. Hell of an experience. Had an 83 Mustang gt back then that we used to race around in on the back roads by the shooting ranges.
     
  19. TMSBOSS

    TMSBOSS TMO Addict

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    1st Group for 20 years. I road in the back, roped out many times. Great group of guys to work with. Don’t believe it? Ask the Pavelow guys. They lost their job when they had to compete with Nightstalkers. Thanks!
     
  20. Hambone

    Hambone TMO Race

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    If anyone else replaces the clutch pedal assy. I would recommend replacing all 3 switches attached to the assy. Had to order a new brake light switch because the old switch plunger was not long enough.
     

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