Clutch causing Engine Noise?

Question

Hi, I have a problem with my 1999 citroen saxo. When the car is running and out of gear there is a rattling noise off the engine. This goes away if i put my foot in under the clutch pedal and lift it up fully. (The engines sounds normal) However if i leave the clutch back on it own the noise starts again. There is obviously an issue with the clutch. I just need to know what part of it? Can anyone help?

Thanks

Answer 1

could be the clutch master cylinder.  possibly a loss of hydrolic pressure causing the weight of the pedal, slight though it may be, to slightly pull on the clutch as if to disengage it.  just a theory mind you.

Answer 2

I would say that your thrust bearing is coming to an end. when you push your clutch down it will sound loudewr than it would normally. best placew to go for this type of case is Mr Clutch (Nationwide)

Answer 3

yep- sounds like clutch release bearing.  might as well replace the pressure plate and disc while the box is out.

Answer 4

CLUTCH CHATTERING

Chattering is a grabbing or jerking condition that occurs when the clutch is engaged. Clutch chatter is often caused by oil or grease on the clutch linings, but it can also be caused by burned or glazed linings, a warped or grooved flywheel, missing flywheel dowel pins, a worn pilot bearing/bushing, a worn bearing retainer, worn or damaged clutch disc or input shaft splines, bent or broken drive straps on the clutch, a bent or distorted clutch disc, a loose clutch cover or even missing flywheel dowel pins.

External causes of clutch chatter include loose or broken engine or transmission mounts, misalignment of the chassis and drivetrain components, worn or damaged U-joints or CV joints, a loose transmission crossmember, a worn or bent release fork, or loose rear left spring bushings or spring U-bolt nuts.



CLUTCH NOISE

Squeals and growls are usually caused by worn or seized bearings. Chirping noises are usually caused by vibration somewhere in the clutch actuator mechanism.

Causes Of Internal Clutch Noise Include:

Worn or defective input shaft bearing;

Defective or misaligned release bearing;

Worn, misaligned or improperly lubricated pilot bearing/bushing;

Worn, bent or improperly lubricated release fork;

Worn input shaft;

Improper disc installation;

Misalignment;

Damaged bearing retainer;

Loose flywheel bolts; and

Damaged disc splines, worn stop pins or broken damper.



Possible External Causes Of Clutch Noise Include:

Incorrect release system adjustment;

Worn driveshaft or halfshaft components;

Worn engine or transmission mounts;

Broken cable self-adjuster; and

Worn or improperly lubricated clutch pedal components.

To find out what is causing the noise, set the parking brake, place the vehicle in neutral and start the engine.

If you hear growling or grinding noises when the clutch is engaged, the cause is the transmission input shaft bearing.



A squealing sound that occurs when the clutch pedal is depressed and held is usually caused by a bad pilot bearing or bushing.

A chirping noise that intensifies when the pedal is slowly depressed would indicate a bad release bearing.

If you hear chirping while idling in neutral and the noise goes away when the pedal is slowly depressed, the fork/pivot ball contact point is making the noise.

Answer 5

sounds like the throwout bearing.