From:
https://www.s2ki.com/forums/index.php?showtopic=540114


Content
Description: rotational noise that's coming from the front, or the transmission.

I did some tests to locate the noise

1. The noise's pitch increases with the car's speed.(direct relationship)
2. Sounded like Hubs/bearing, so replaced both rear sides hub/bearings(only rear)
3. The sound was still there, so replaced rear diff(today)
4. Sound still there with new diff. Mechanic told me it could be the transmission.
When stationary, I turn on the engine, i hear some grinding sound. When i press on the clutch pedal, the grinding sound goes away. When clutch pedal is released, the grinding sound returns.
5. So as I was coming back from the shop, I was going 60km/h, I turned off the engine to see if it was the transmission. Cruising at 60km/h down to 40km/h with engine off, sound is still there.

WHERE IS THIS SOUND COMING FROM????!??!!?!??!?!G;HFGA;SLKDFHA;SLKDFJ


Somebody has to know...

 

clutch throw out bearing.

 

 

In additions to 5.

6. When rolling with engine turned off, I hear the rotational sound, i press on the clutch, i still hear the rotational sound.

 

here is another possibility:

https://www.s2ki.com/forums/index.php?showtopic=409603

 

Jack up the front end and spin each front tire to see if the noise is from wheel bearings or crud in/on a front caliper.

 

I have the exact same symptom .. the whining sound.

Hmm.. seems like transmission rebuild is coming up.

Thanks a lot.

 

Is this a symptom for clutch TO bearing as well?

Or is it transmission related?

Please confirm....

 

typically the clutch TO bearing makes a noise when you have the clutch pressed in/down ie: sitting at a red light with the clutch pedal pressed down. btw, it is better to put the car in neutral with your foot off the clutch pedal while sitting still to avoid wear on the TO bearing.

 

The throw out bearing will make noise with the cluth pedal depressed. It's more likely the transmission input shaft bearing. When you press the clutch pedal, the engine and transmission "seperate" which is why the noise goes away. Good luck!