Clutch pedal loud squeak - Page 36 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

JB86'd · 09-24-2016, 02:05 PM

So around 20k miles (like most with this issue) clutch started squeaking, and has progressively gotten worse. I can feel slight crunchiness in end of pedal travel, and it's now happening with car on and off, usually starts after driving for a while. No abnormal TOB squealing or high pitch noises, just this creaking noise:
Dry clutch fork? Or throwout bearing binding on transmission snout? Dreading taking my car to the dealer.

[ame]http://youtu.be/hQnkycC_6fQ[/ame]
@Ultramaroon

humfrz · 09-24-2016, 02:44 PM

Quote:

Originally Posted by JB86'd

So around 20k miles (like most with this issue) clutch started squeaking, and has progressively gotten worse. I can feel slight crunchiness in end of pedal travel, and it's now happening with car on and off, usually starts after driving for a while. No abnormal TOB squealing or high pitch noises, just this creaking noise:
Dry clutch fork? Or throwout bearing binding on transmission snout? Dreading taking my car to the dealer.

That sounds like a spring (as in screen door spring) squeaking.

However, it could be the shaft from the slave cylinder making that sound, which can be lubricated - see discussed methods).

I suppose it could be the fingers on the pressure plate .. ??

If our cars have a clutch return spring (a little help here @Ultramaroon), I would place that as the #1 suspect.

Good clear video ....

humfrz

Stang70Fastback · 09-24-2016, 03:01 PM

It isn't the clutch return spring. If you have someone depress the clutch while you look under the hood, you'll be able to pinpoint where the noise is coming from.

I got my entire clutch assembly replaced due to this noise, but I think it's already coming back less than 1,000 miles later, so maybe it is just a lack of grease on the clutch fork shaft thing.

Ultramaroon · 09-24-2016, 03:09 PM

Quote:

Originally Posted by JB86'd

So around 20k miles (like most with this issue) clutch started squeaking, and has progressively gotten worse.

@Ultramaroon

Yup. That's it. Lubricant failure/contamination. The crunchiness at the bottom is not the dry fork. It is the TOB binding against the front cover.

When they drop the transmission make sure they don't just dab grease in there. That snout needs to be fully cleaned. If it is worn or scored, it must be replaced.

JB86'd · 09-24-2016, 04:53 PM

Quote:

Originally Posted by Ultramaroon

Yup. That's it. Lubricant failure/contamination. The crunchiness at the bottom is not the dry fork. It is the TOB binding against the front cover.

When they drop the transmission make sure they don't just dab grease in there. That snout needs to be fully cleaned. If it is worn or scored, it must be replaced.

That's what I figured. I tried lubing both sides of the slave cylinder piston, and reached down to grease top of clutch fork pivot, with no success. Looks like it's going to the dealer. Thank you sir.

Stang70Fastback · 09-24-2016, 04:59 PM

Quote:

Originally Posted by Ultramaroon

Yup. That's it. Lubricant failure/contamination. The crunchiness at the bottom is not the dry fork. It is the TOB binding against the front cover.

When they drop the transmission make sure they don't just dab grease in there. That snout needs to be fully cleaned. If it is worn or scored, it must be replaced.

What if I have crunchiness already and the entire assembly was just replaced less than 1,000 miles ago? Lol.

Ultramaroon · 09-24-2016, 06:43 PM

Quote:

Originally Posted by Stang70Fastback

What if I have crunchiness already and the entire assembly was just replaced less than 1,000 miles ago? Lol.

Look at your invoice. I bet they did not replace the transmission front cover.

Something about the clutch mechanism, the materials, the lubricant, something is critically flawed. I think they should lengthen the bushing on the TOB to better prevent binding when it starts to wear.

Maybe the specified lubricant sucks. Maybe the bell housing ventilation blows dust from the disk in just the wrong way. So much to consider.

Stang70Fastback · 09-24-2016, 07:06 PM

Quote:

Originally Posted by Ultramaroon

Look at your invoice. I bet they did not replace the transmission front cover.

http://www.seriesblueadventures.com/...nder-warranty/

Ultramaroon · 09-24-2016, 08:25 PM

Quote:

Originally Posted by Stang70Fastback

http://www.seriesblueadventures.com/...nder-warranty/

I don't see it there. It's not a trivial job. If you didn't get more than a thousand miles out of it, I'll guess it was already worn and they did not carefully clean it. Go back and look at my pictures.

Mine is still ok after about 5000 miles but I don't expect it to last forever.

Stang70Fastback · 09-24-2016, 08:34 PM

Quote:

Originally Posted by Ultramaroon

I don't see it there. It's not a trivial job. If you didn't get more than a thousand miles out of it, I'll guess it was already worn and they did not carefully clean it. Go back and look at my pictures.

Mine is still ok after about 5000 miles but I don't expect it to last forever.

At this point I'll just let things go for a bit and see what happens. I'd rather bring it back with it making proper TOB failure noises this time so that they can be certain that whatever they did didn't fix and/or exacerbated the problem.

Ultramaroon · 09-24-2016, 08:42 PM

Quote:

Originally Posted by Stang70Fastback

At this point I'll just let things go for a bit and see what happens. I'd rather bring it back with it making proper TOB failure noises this time so that they can be certain that whatever they did didn't fix and/or exacerbated the problem.

Show them the crunch now. Less than 1000 miles? I'd be furious.

Stang70Fastback · 09-24-2016, 08:49 PM

Quote:

Originally Posted by Ultramaroon

Show them the crunch now. Less than 1000 miles? I'd be furious.

I'm not furious because they didn't seem to know what the issue was the first time around, so they just replaced all the clutch stuff hoping that would fix it. Everyone gets a "chance" to fix something as far as I am concerned, and since the replacements they made did solve the problem initially, I don't blame them. The crunch doesn't always happen yet, but as soon as it becomes persistent I'll look into bringing the car in (my schedule is so busy lately it's hard to coordinate that stuff) and hopefully they will take a deeper look at things.

Jonesy86 · 09-24-2016, 08:50 PM

Quote:

Originally Posted by Ultramaroon

Show them the crunch now. Less than 1000 miles? I'd be furious.

When aren't you furious? You grouch.

Ultramaroon · 09-24-2016, 08:54 PM

Quote:

Originally Posted by Jonesy86

When aren't you furious? You grouch.

lolol Grrrrr...

09-24-2016, 02:05 PM	#491
JB86'd Senior Member Join Date: Oct 2013 Drives: JAWS Location: socal Posts: 703 Thanks: 753 Thanked 437 Times in 224 Posts Mentioned: 27 Post(s) Tagged: 1 Thread(s)	So around 20k miles (like most with this issue) clutch started squeaking, and has progressively gotten worse. I can feel slight crunchiness in end of pedal travel, and it's now happening with car on and off, usually starts after driving for a while. No abnormal TOB squealing or high pitch noises, just this creaking noise: Dry clutch fork? Or throwout bearing binding on transmission snout? Dreading taking my car to the dealer. [ame]http://youtu.be/hQnkycC_6fQ[/ame] @Ultramaroon __________________

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09-24-2016, 03:01 PM	#493
Stang70Fastback A.K.A. Starlord Join Date: Oct 2013 Drives: 2015 Series.Blue Location: Illinois Posts: 1,842 Thanks: 845 Thanked 2,099 Times in 834 Posts Mentioned: 30 Post(s) Tagged: 3 Thread(s)	It isn't the clutch return spring. If you have someone depress the clutch while you look under the hood, you'll be able to pinpoint where the noise is coming from. I got my entire clutch assembly replaced due to this noise, but I think it's already coming back less than 1,000 miles later, so maybe it is just a lack of grease on the clutch fork shaft thing.

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