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transmission issue?(wierd sound)

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Old Sep 24, 2011 | 12:12 AM
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$MIVEC$'s Avatar
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transmission issue?(wierd sound)

OEM pressure plate
ACT 50/50 disk
OEM throw-out bearing

The change was done around 2.5k-3k miles ago if not a bit more. There a slight sound at idle which is the bearing but that does not worry me much since sometimes its inevitable after a clutch change.

The issue is a weird "clank" noise that is very noticeable during sometimes the 1st to 2nd gear change only after a few seconds after clutch has been engaged in 2nd gear. Also every time during 1st I accelerate or decelerate you hear the "clank" noise from the tranny. Yes I've tested if it was noise from the suspension. Sounds like the pressure plate is having a hard time

Car shifts smoothly
No grinding
No issues using any gear

Any ideas?
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Old Sep 24, 2011 | 04:01 AM
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I have been having that exact same issue but I'm still all stock in the tranny , aside from the bg2 fluid in it. I have been just trying to keep my shifts and down shifts away from the really low rpms, that's the only time I hear it like between 1-2.5k then its gone. :/

I have had this for a while now the car drives fine on the hwy and city otherwise. I always figured it was the tranny just needing some upgrades as the motor is far from stock but the tranny is OEM.
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Old Sep 24, 2011 | 08:37 AM
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I have to agree with. The lower the RPM's the more noticeable it is. In fact you can only hear it mostly during low RPM's.
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Old Sep 24, 2011 | 10:47 AM
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similar sound

I had a similar problem with a "clanking" noise which started to become noticeable around 87k miles. I drove it that way until I reached around 107k and then decided to have it rebuilt because I had someone local with a lot of DSM\Mitsu transfer case knowledge. The builder said it was a combination of components that have worn. The input shaft bearings were not the complete problem as I had originally thought. They did have some wear but nothing abnormal. 2nd gear synco was worn and had to be replaced as well as burring\wear on 5th that he cleaned up. But the main wear issue was a groove on my Clutch release bearing retainer (see #1 below). Which was probably not allowing the clutch release bearing from seating completely and creating a clattering\clanking noise most noticeable when engaging\disengaging at low RPMs. I did start to notice that same noise towards the end at higher RPM shifts, but only slightly.

Not sure if this helps but this was my situation.

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Old Sep 24, 2011 | 12:29 PM
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Your description is almost identical to what i hear under the same circumstances. Tranny has 65k miles and shifting isnt bad so i can say my synchros aint that bad...i too thought about the release bearing

Question is....would this create irreparable damage if not taken care of quick or at all?
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Old Sep 24, 2011 | 01:44 PM
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I can't say for sure in your case but my car drove fine and I could have driven it until it crapped out because either way I would have to rebuilt or replace trans or car entirely. I have little over a 72 mile commute each work day, so I went and did it sooner than later.

You have to determine first and foremost what your objective is with your car. Do you owe money on it? Thinking of replacing it in a year or two? Trying to keep her for a good period of time? That sort of thing.

You also have to ask yourself what you will risk before you replace or fix the car. Meaning, if you do short trips and don't mind being stranded because it isn't burdensome, then I'd probably keep driving.

Rebuild is definitely more than finding a used one BUT when you rebuild you KNOW what you get and how good it is plus warranty if anything goes wrong. Again, it starts with what you are going to do with the car long term.

Me, as I said before, I am looking to get another 50k or more out of my car before I go with another car. I put on about 18k miles a year, so I'm thinking end of 2013 I'll start looking for a deal on another car.

Good luck
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Old Sep 25, 2011 | 12:12 AM
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i'm well past 180,000 km about 112,000 miles, i rebuilt the transmission when my T belt went, and that was at about 162,000 if i recall correctly. I didn't have this problem, mine was 3rd gear grinding at any rpm, even idle.

rebuilding the transmission is not as difficult as one might think, just make sure you have easy access to a bearing press. It may cause abnormal wear on other components, but as veloracer stated, as long as you're not doing long hauls, you could probably get away with going with it, but if you can, and have the time and money, rebuild the transmission...If you take it off the car, you may as well crack it open and overhaul it at that point.

Last edited by CrAnSwIcK; Sep 25, 2011 at 12:14 AM.
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Old Sep 26, 2011 | 08:39 PM
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Rebuilding the transmission is quite a statement because the clutch, pressure plate, bearing, seals, tranny fluid are all new. The shifts enter smoothly on all gears and synchros are ok. Only 65k miles on it. The only thing untouched is the flywheel

So rebuilding on its condition i think is a bit of overkill



BTW i hope your 162k T-belt break was not the factory belt

Last edited by $MIVEC$; Sep 26, 2011 at 08:48 PM.
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Old Sep 27, 2011 | 05:04 AM
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it looked like it may have been the original belt.

veloracer's suggestion may well be worth looking at if everything else has been taken care of, you part that sucks is that it still involves removing the transmission.
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Old Dec 9, 2011 | 10:47 PM
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Heres a clip of the sound

Sorry but I took it at night and well cant see much in the video. Video starts at idle.

Sound goes away when pressing the clutch, you can notice it easily. (Im almost sure its the TOB)

After a few clutch presses its set on 1st gear and moved a bit then Reverse and moved then 1st and moved again

http://www.youtube.com/watch?v=RHsX8...ature=youtu.be
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Old Dec 9, 2011 | 10:52 PM
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sounds terrible...i bet the clutch pressure plate is thrashed too...
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Old Dec 10, 2011 | 08:22 AM
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Yes it sounds terrible

Thing is it works perfectly....I have no clue what the sound may be
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Old Dec 10, 2011 | 10:51 AM
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Originally Posted by $MIVEC$
Yes it sounds terrible

Thing is it works perfectly....I have no clue what the sound may be
That is just like mine , I'm convinced it's the tob. I don't get to drop it yet but I'm planning on the clutchmaster stage 2 Kevlar kit , oem tob, resurface the stock flywheel....and I can barely afford that damn kids
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Old Dec 10, 2011 | 10:55 AM
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i'll bet money it's the TOB...i thought we were already blaming it.
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Old Dec 10, 2011 | 12:20 PM
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what pisses me off is the TOB, the plate and clutch are basically new

i had a bit of clutch chatter after changing the clutch though
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