Can be a throw out bearing in the clutch assembly going bad.
With just that to go on I would say that your clutch release bearing is going bad especially if the noise quits when you put pressure on the clutch
when the engine weres down
You cannot change the compressor bearing, however, you can change the clutch bearing. Which one is bad? Is there a noise when the clutch is engaged, or not engaged?
A throwout bearing can make a whistling sound- really more of a chirp than a whistle. Unfortunately, it sounds like you are in for a new clutch assy.
A grinding noise when the clutch is engaged typically indicates that the clutch components are not properly interacting. This could be due to worn-out or damaged parts such as the clutch disc, pressure plate, or release bearing. Additionally, insufficient lubrication or misalignment of the clutch assembly can also contribute to the grinding sound. It's essential to address these issues promptly to prevent further damage to the transmission system.
The fuel pump is engaged.
Throw-out bearing................
i hate answers.com
the front end load bearing or other bearing in the gearbox will be stuffed. when you engage the clutch the gearbox doesnt have any drive thru it so stops turning and then you noise stops.
A tapping noise when pressing down the clutch may be caused by several factors, including worn or damaged clutch components, such as the release bearing or pressure plate. It could also indicate issues with the clutch linkage or hydraulic system, such as air in the hydraulic fluid or a failing master/slave cylinder. Additionally, loose or damaged engine mounts can transmit vibrations, producing a tapping sound when the clutch is engaged. It's advisable to have the vehicle inspected by a mechanic to diagnose and address the issue properly.
Inadequate oil in a/c comp, bad bearings,bad clutch are possible causes.