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Question On Clutch Slippage.

Old 08-31-2012, 12:42 AM
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Blacksmoke
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Question Question On Clutch Slippage.

Ok.

I had the TSB done on the Shelby.
Only have 100 mi. on it since.

I cant tell if this is my imagination or not.
But it seems that when I am at low speeds and very easy on the gas at a constant speed almost.. the car will kinda lose the tiniest bit of acceleration for a second.

It does not happen right after switching gears.
This is a good amount of time after the gears have been switched and
my foot has been of the clutch. And its at a slow speed with my foot barely making the speed constant.
That point in between constant and barely giving it gas.

Can a clutch slip during this time? Or only right after you switch gears?

I mean... this is the new 2010 setup, if slip CAN happen at this time why the heck would it with this brand new setup?

I have not noticed the RPM's jumping.
Its a very light and weird feeling.

Last edited by Blacksmoke; 08-31-2012 at 01:50 AM.
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Old 08-31-2012, 06:40 AM
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05 Mustang
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If you aren't noticing the RPM's increasing while this happens, I'd have to say it's not slipping. I'd continue driving it and see if it's just your imagination and goes away....might just be the feel of the new set up. If it doesn't go away and continues to bother you, take it back and have it looked at...or explained.

Good luck!
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Old 08-31-2012, 09:04 AM
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wcgman
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How much was the TSB?
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Old 08-31-2012, 10:58 AM
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The TSB cost about 1800-2k total if there is no syncro damage depending on the dealership.
Hell... a year or two ago I was hearing it was 3k without syncro damage.

Either I was hearing wrong or the prices dropped.

Last edited by Blacksmoke; 08-31-2012 at 11:06 AM.
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Old 08-31-2012, 11:02 AM
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Oh Yeah I was gonna say about what I thought my car was doing...

When the clutch slips it would feel like the engine is racing or revving but not gaining speed right?

Mine felt like it was losing slight power I think...like actually doing less for a split second. I could feel it for a sec and then it would kinda kick back in.

I drove it last night after this thread and really couldn't get it to do it again but yesterday it did it a number of times.

I did notice I was at low speeds and my foot barely pushing on the pedal.
I wonder if it was me being so light on the acceleration and my foot that it just acts that way sometimes. Or that if you arent really pressing down for acceleration it's deciding whether you are taking your foot off the gas or putting it on... or you are actually doing both but dont notice because its such a slight difference in foot movement.

Really odd...
But a clutch slip would feel more like a revving engine right?
Not gaining speed but RPMs and engine sound?
Right? Wrong?
or can clutch slip feel like a small engine miss/give?

Still also wondering if clutch slip can only happen right after shifting or just in the middle
of normal driving too.

Last edited by Blacksmoke; 08-31-2012 at 12:25 PM.
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Old 08-31-2012, 12:34 PM
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cheftjpeck
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Clutch slip could feel as u describe at low rpm etc.. A slight hiccup or hesitation .. Clutch could just hang up for a brief second.. In my case it is only noticeable when in high boost..
It could also just be a hiccup .., a split milisecond where the ECU is trying to determine your current driving habit and making adjustments accordingly.. That's what these cars do often is learn and adjust..
Just curious .. Stock tune or upgrades?
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Old 08-31-2012, 12:48 PM
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Stock.

So are you saying clutch slip could feel like an engine miss/hiccup?
Can it happen when you are driving normally as far as nowhere near having switched gears? Or is it only right after gear shift?
Thanks for the input btw!

Also.. would I definitely see the RPMs go up?
If so how much are we talking about? As small as 20 points as in a blibbitt.. or would it be
a more pronounced increase in RPM number without acceleration like 300-500 points?


Keep in mind im talking about my foot being on the pedal at JUST enough to make it actually gain speed, AND i THINK even
when I have it going at a constant speed. Im also talking about speeds of 30-40MPH in 2nd and 3rd gear.
RPMs are at 2k usually under that.

Last edited by Blacksmoke; 08-31-2012 at 12:58 PM.
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Old 08-31-2012, 12:58 PM
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Yes it could at low rpms...
It is unlikely that it would happen just as you r just driving (without a gear change or change in accel or decel) not impossible though.. If anything is warped (flywheel) or if there is a change in clutch fluid flow from temps etc, ... Just keep an eye on it.. Maybe your foot fluttered .. Or maybe it's just the ECU / throttle by wire.., maybe allot of things.. But most important part is repetition ..
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Old 08-31-2012, 01:00 PM
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But how the hell could the flywheel be warped if they just put in that new 2010 flywheel 100 mi. ago?
And again would I DEFINITELY see a decent increase in RPM during this if it was slipping?

Last edited by Blacksmoke; 08-31-2012 at 01:06 PM.
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Old 08-31-2012, 01:08 PM
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cheftjpeck
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Originally Posted by Blacksmoke
But how the hell could the flywheel be warped if they just put in that new 2010 flywheel 100 mi. ago?
Improper install... Improper break in .. Defective part

Just because it's new ... Doesn't mean it's 100% without flaw

Think of the irony... How could ford allow a $40,000 ++ vehicle leave the plant with inferior parts?
They did.. Thus the TSB's
Not knocking Ford.. Just saying it happens
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