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2003 impreza Rs silver
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Discussion Starter #1
Sent my 2003 peanut eye Rs in for a low mileage engine swap... They suggested to do a clutch Aswell which worked fine for me better safe the sorry so I got the clutch replaced along with the engine... When I got the car back it had massive clutch shudder to the point where people where looking at me at intersection and traffic lights... Sent it back they said it was the clutch so they replaced with a exedy sports clutch which I was happy with no more shudder beautiful and smooth but in the last month it two a weird knocking noise and whirring sound are coming from the transmission in neutral idling... When I push the clutch in it is gone back silent then when I let the clutch back out it comes back to sing to me again???? Any ideas I wanna pull this bitch apart so give me some advice....
 

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Sorry man, sounds like a headache. If it has only been a couple months I'd take it back to the shop you had it done at. After that, I'd pick another mechanic next time.

Clutch shudder on take off is from uneven engagement of the disc/flywheel, thus I'm assuming they skipped machining the flywheel the first time.

New issue, could be the throw out bearing, but those clutch kits usually come with a new one.

Also, I'd assume you'd have noise when you push the clutch pedal down with a throwout bearing issue. As this is when you are loading the bearing. When you release it, you are no longer loading the throwout bearing and it shouldn't make any noise.

Thus I would think that you have a transmission problem if it is making noise engaged in neutral at idle. Input shaft bearing maybe? I had a final drive/output bearing issue with mine and it made noise engaged under load at high speeds.
 

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98 RS turbo
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The throw out bearing makes noise when there is no tension on it. When you push the pedal in it puts pressure on it and the noise goes away. Its the opposite of what you would think. It could. Be as simple as one of the retaining clips broke. Its a $1 piece but $500 labor. Sucks.
 

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2003 impreza Rs silver
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Discussion Starter #5
But also in first gear with windows down just idling along I can hear the box growling
 

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Ok, so if you're saying that in neutral (parked) you hear a squealing noise that goes away when you disengage the clutch then comes back when the clutch is engaged (in neutral or any other gear) then its an input shaft bearing. If it still squeals in neutral while moving then it's definitely is an input shaft bearing (Not a pilot bearing or throw out bearing). There are differences between those three. Chances are that the shop that put the clutch in put stress on your input shaft and messed up that bearing.

Your clutch is splined to the end of the input shaft. When you're in neutral and the clutch is engaged, the input shaft is spinning with the engine the "load" is mostly on the input shaft and clutch. When you're in neutral and not moving and you disengage the clutch the input shaft will stop spinning. So the input shaft won't make noise, the load is now transferred to the pressure plate and throwout bearing. This is when the throwout bearing should make noise.

Here a simple diagnosis if your not that car savy.

Throw out bearing
Start the car in neutral with clutch engaged.
If you don't hear a noise that is good.
Press the clutch pedal half way between engaged and disengaged.
If you hear the noise between half engaged and hear the exact same noise fully disengaged...
Throwout bearing is bad R/R.

Pilot bearing
Start the car in neutral with clutch engaged.
If you don't hear a noise that is good.
Press the clutch pedal half way between engaged and disengaged but still engaged.
If you don't hear a noise that is good.
Press the clutch pedal half way between engaged and disengaged but slightly disengaged.
you should hear a noise now.
fully disengage clutch(WHILE STOPPED AND IN NEUTRAL!!!)
you should hear a noise.
Pilot bearing bad R/R.

Input Shaft bearing
Start the car in neutral with clutch engaged.
If you hear a noise the input shaft bearing is the culprit.
Press the clutch pedal half way between engaged and disengaged.
If you hear a noise while slight still engage then input shaft bearing.
If you don't hear a noise while slightly disengaged then input shaft bearing.
Fully disengage clutch.
If you hear nothing now bad input shaft bearing.

Note:
If you're moving and in gear you should hear a whine. If your moving, not in gear, with clutch fully disengaged, and in neutral the noise may go away when the speed of the input shaft drops.

FYI these are not easy to service... you should take it to a specialist transmission shop.

Whatever shop you had work on it... they probably put a new guy on it. I would never return to that place if i were you.
 

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2003 impreza Rs silver
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Discussion Starter #7
If I start the car in neutral with no foot on the clutch it is making a noise its like a knocking noise then soon as I push the clutch to half engaged you can start to hear the sound go away ???
 

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2003 impreza Rs silver
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Discussion Starter #8
With the clutch full engaged in neautral there is no noise but soon as I disengage clutch the noise comes back
 

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Your input shaft bearing is bad. They probably messed it up when they put the new clutch on the first time. Take it to a different ship that is well known and does good work... Make them double check the diagnosis. If I'm correct you will need a tranmission shop to tear it a part and replace that bearing. Do not cheap out on this kind of work!!!! Tranmissions need to be put back correctly and you need proper equipment to work on them. There are many companies that make engines... There are on four companies that build tranmission... And there is a reason for that!!!!
 

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Sent my 2003 peanut eye Rs in for a low mileage engine swap... They suggested to do a clutch Aswell which worked fine for me better safe the sorry so I got the clutch replaced along with the engine... When I got the car back it had massive clutch shudder to the point where people where looking at me at intersection and traffic lights... Sent it back they said it was the clutch so they replaced with a exedy sports clutch which I was happy with no more shudder beautiful and smooth but in the last month it two a weird knocking noise and whirring sound are coming from the transmission in neutral idling... When I push the clutch in it is gone back silent then when I let the clutch back out it comes back to sing to me again???? Any ideas I wanna pull this bitch apart so give me some advice....
MAYBE THEY FORGOT TO PUT FLUID IN AFTER CHANGING IT.
 
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