If it is a manual transmission it may make a whining noise or, if it is really falling apart, a grinding sound. If it is an automatic, they usually don't make any particular noise. Most of the functions are pressure valves so the transmission just doesn't shift properly or won't move when in gear. If you are geyying a grinding noise but the transmission seems to be functioning okay you probably need to have the flywheel inspected to see if the starter is dragging or the flywheel has broken or cracked.
Failing transmission
does this vehicle have a manuel transmission sounds like clutch is slipping on a manuel transmission. if an automatic,either the torque converter or the auto transmissions is failing
This doesn't sound like a legitimate reason to fail an inspection. I'd take the vehicle to another service station.
it sounds like a loud metallic tapping noise that you won't mistake for anything else
Mitsubishi eclipse is famous because of failing transmission. If I were you I would start with checking transmission fluid level. But most likely you will have to change transmission or fix one you have.
The muffler is failing, the "floss" is how the exhaust sound is muffled.
Remove a muffler.
its called failing ▲ ▲ ▲
Glass is not a good sound conductor because it is a poor transmitter of vibrations. Sound waves do not pass easily through glass, causing it to limit the transmission of sound. Sound transmission is more efficient through materials like metal or water.
Probably resistors failing for the variable speed control; search "Blower Motor Resistor" for replacement info (it is easy). The SCR's sound like a banshee when they are failing.
I had that in a vehicle i used to drive, and they had to replace the whole wiring system inside the transmission
it sounds like a bad throw out bearing or clutch plate. not a major deal it just starts to get louder but eventually you going to have to replace it when you do your next clutch job. chris