truck shutters when releasing clutch? - Ranger-Forums - The Ultimate Ford Ranger Resource


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  #1  
Old 08-28-2007
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truck shutters when releasing clutch?

When I'm in 1st gear starting off from a light, the truck likes to shutter as I slip the clutch. I figured it was a clutch problem soooo...

Replaced:
Clutch Kit
Flywheel
Pilot Bearing
Throw out bearing
Rear main seal (just for good measure)

So what else could it be? I guess the transmission mount felt a little weak, I donno how to tell if the U-Joints are bad or not but there was hardly any play when trying to move them around by hand.

Anybody help me out on this one?
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Old 08-28-2007
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My truck does this as well but I blamed it on faulty clutch installation. Next time I'm doing it myself. Oh yea, I have a Centerforce Clutch.
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Old 08-28-2007
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Did you be sure and degrease the flywheel and pressure plate before putting it together?
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Old 08-28-2007
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Quote:
Originally Posted by OTRtech
Did you be sure and degrease the flywheel and pressure plate before putting it together?

I was going to ask the same thing.

Like brake rotors, some OEM parts makers coat clutches and flywheels in a ( for lack of better term ) ' oil ' to prevent rust and shelf wear. I've had to clean every clutch I have installed in many different vehicals over the last 5-6 years as they all came coated.
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Old 08-28-2007
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I've done a lot of clutch installs in the past, so yes, I covered the flywheel in brake cleaner 3 times and wiped it all down each time. Did that to the pressure plate twice.

The thing did this EXACT same thing before I replaced the clutch, I figured it was an incorrect install from the previous owner as well but I don't see how. Torqued everything to spec (digital mac wrench), input shaft play looked about normal, other than the clutch/pressure plate, everything I installed is OEM Ford.

I'm taking blame away from the clutch (I did this before I even started the clutch job), because I can't really feel it through the pedal, only the seat.
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  #6  
Old 08-28-2007
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Slip yoke?
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Old 08-28-2007
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I didn't install my clutch but I had Goodyear install a new flywheel because I though that was the problem. Like I said, next time I'll install it myself and I will go for the Spec clutch kit next time.

One more thing, my truck shutters if I release the clutch normally at 1000-1500 rpm but if I rev higher like 2000rpm it does not shutter.
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Old 08-28-2007
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Mine does it too, under certain conditions. I have always attributed it to the rear suspension. I feel it is related to what I think is called "axle wrap". Anyway it is a torsional ocsillation of the rear axle.
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Old 08-28-2007
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I don't think so. Why does my shuddering go away with higher revs? I could be my Centerforce but I doubt it. I'll find out if I decide to keed my truck and throw in a new clutch.
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  #10  
Old 08-28-2007
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IN2 does have a decent point. I am going to replace my tranny mount and U-Joints anyway (cheap parts with almost 100k on them, might as well). After that I'm going to start poking around at the rear suspension.
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Old 08-28-2007
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Isnt this just something a manual does? My quad does it.
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Old 08-28-2007
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Quote:
Originally Posted by Bailey
Isnt this just something a manual does? My quad does it.
LOL! Its no fun though. It feels like something is going to fall off when I'm driving.
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  #13  
Old 08-28-2007
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Hmmm I used to have the same thing. I think its clutch related because after i burned up my clutch when i got stuck in a sand pit it stopped doing it.

Now I only feel it once a while and just very slightly.
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  #14  
Old 08-28-2007
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Quote from Kook
I am going to replace my tranny mount and U-Joints anyway

I would also check the engine mounts.
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Old 07-07-2008
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Mine has started doing this even more now that I have installed my 8.8 with 4.10 gears. Everything in the rear appears to be in good shape and the clutch is fine, doesn't rev at low speeds in a high gear.

It seems like if I release it easily it's like everything haults for a second and then kicks back in. It feels like a tooth is gone off a gear but pretty sure that would be making a noise. U-joints are good.

I wonder if it is a sensor.

How do I check the transmission mount? Wouldn't I feel it though the gear shifter?
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  #16  
Old 07-08-2008
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hmmmm, is there a whining noise at all, my problem sounds similar and my pinion is going bad
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Old 07-08-2008
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Quote:
Originally Posted by kuber4 View Post
hmmmm, is there a whining noise at all, my problem sounds similar and my pinion is going bad
Well it did it with my 7.5 rearend but now with my 8.8 and lower gears I figured the lower gears are putting more torque (play) on something. I checked the differential before I put it in and it is solid. The truck I pulled it off had an engine fire and the back end was in perfect shape and only had 30k miles on it.

I have done quite a bit of searching and it's probably due to a combination of things. I installed the FX4 lift blocks and haven't reinstalled my sway bar. It is probably ever so slightly twisting my axle and when I release it slips back into a more normal position. I think I'm going to order some James Duff Tractions bars because I get axle hop like crazy in the winter anyways.

Last edited by Hillyard; 07-08-2008 at 10:27 AM.
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  #18  
Old 07-15-2008
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The James Duff traction bars and new U-bolts seemed to have solved it for 99% of the time. It has only done it once and that was after some wild terrain. I wonder if loose shackles could be the cause of this? My leaf springs are in good shape.

Looking back I should have ordered some 4-6" lift leaf spring pack and installed an explorer axle. Then I could have installed the explorer rear suspension...Oh well
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