Tizzing gear-stick

[bigbob77]

I have a Chevrolet Lacetti where the base of the gear-stick vibrates when its in gear and the engine is revving, and the vibration causes a metallic "tizzing" sound.
If you rest your hand on the gear stick and move it just one or two millimeters, the noise can stop and come back.

I uploaded a video of the problem here: https://www.youtube.com/watch?v=PS3sPWRQt2k

It looks wet because I have just sprayed it with tonnes of white grease, which didn't make a difference.

Any idea how to sort this out? It's really annoying and is sometimes loud enough to drown out the radio and engine!

[bigbob77]

No ideas?

[Codswallop]

Does it make the noise while driving or affect the car?

I suppose you have already tried pressing and holding various parts to see if the rattle goes away?

[redtwin]

The problem may be further down the stick where it connects to the gearbox. There may be a plastic washer or similar that has deteriorated or fallen out. Get under the car and have a good look.

[bigbob77]

It does make the noise while driving. Very loud sometimes!

Pushing/squeezing things doesn't make a difference. But moving the gearstick a couple of millimeters in any direction does stop it.

I'm not very familiar with the underneath of a car... What specifically should I look at?