S2000 Under The Hood S2000 Technical and Mechanical discussions.

Rear Diff.... AGAIN!

Old Jan 17, 2007 | 06:46 PM
  #1  
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Default Rear Diff.... AGAIN!

When ever i take my foot off of the gas, somthing starts clicking very loudly. As soon as i either push the clutch in or apply any kind of power, it stops. The speed of the clicking is constant with the speed of the car no matter what gear im in, so im pretty sure its the diff but from inside the car it sounds like its coming from the tail of the transmission. Then today i noticed that ONLY on SHARP LEFT turns(it doesnt do it on right turns) IT makes a loud Clicking/Roaring sound that stops as soon as i straiten up. Im already guessing im going to need a new diff but any ideas on what might have caused this, as this will be my third diff? Untill it started doing this crap again I have not drag raced my car or done any type of clutch drops or burnouts.

EDIT: The clicking is VERY LOUD there is also a VERY LOUD POP! if i step hard on the gas or if i lift off real fast.
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Old Jan 17, 2007 | 07:00 PM
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Mine makes a noise, WHen you let of the gas- But someone said all s2ks make it... I dont know what your issue could be?
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Old Jan 17, 2007 | 07:03 PM
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no... i have had my s2k for over 2 years, i know its not normal.
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Old Jan 18, 2007 | 12:49 AM
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RedAP1S2K Posted on Jan 18 2007, 04:46 AM
The speed of the clicking is constant with the speed of the car no matter what gear im in, so im pretty sure its the diff but from inside the car it sounds like its coming from the tail of the transmission.
Everything in between the secondary shaft inside the transmission (where the propshaft companion flange is connected to) and the wheels will be "at the speed of the car"

Have you looked underneath the car yet?
Checked lug nuts, etc..?

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Old Jan 18, 2007 | 03:19 PM
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so could i have two completly diffrent problems or should i start with the rear end and hope that fixes it?
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Old Jan 18, 2007 | 04:08 PM
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dont forget about the axles and bearings.
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Old Jan 19, 2007 | 03:47 PM
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RedAP1S2K Posted on Jan 19 2007, 01:19 AM
so could i have two completly diffrent problems or should i start with the rear end and hope that fixes it?
IMO you should start with having a look underneath the car.

You're kinda fixed on the diff so it seems.. drain the diff oil.
Are there lots of metal shavings on the magnetic drain plug?
How does the old oil look and smell?
Replace with (as per manual) SAE 90 GL-5 hypoid gear oil.
LE-607 is precisely that.
One quart is enough, the diff takes a bit less.
If you find nothing you'll have fresh diff oil, always good.


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Old Jan 21, 2007 | 09:45 PM
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Clicking in a turn is almost certainly symptomatic of a bad cv joint. Accoring to numerous posts on these boards my2000 cars have a lot of cv joint problems. I think Honda hardened the pressure points inside the joints in later years.

That said if you have already trashed two diffs it could be anything back there.

It would be nice to know how old you diff is, have you changed the fluid a lot/never. How about looking under the car at the condition of all bolts on the driveline? Are your CV joint boots intact and retaining grease? Also, are your hubs new, and have the hub nuts been torqued to the new spec?

here's the link to cv problems and replacement

https://www.s2ki.com/forums/index.php?showtopic=3924
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Old Jan 21, 2007 | 11:11 PM
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spindle nut?
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Old Jan 22, 2007 | 12:19 AM
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I have that clicking as well, but I got my axles replaced a month ago by Honda.

Diff fluid has been changed... still clicks.

I'm in the same boat as you!
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