Hi Elad
Could be one of a few things:
Cable has come loose at the ends - either behind the rev counter or at the water pump drive.
The inner cable ends are "square" and occasionally the edges round off & you loose drive to the inner cable.
The inner cable eventually frays & breaks off.
It's an easy job to sort out, but will require some grimbling under the dash & around the water pump.............but then you've had some practice of late, grimbling under the dash of your SS ...
It's a good idea to put a bit of lubrication into these cables, a light lithium based grease is usually sufficient.
Shout if you need more help
Cheers
Greig