Whining, clunking, or slipping between gears. Check the fluid before anything else.
Low or burnt transmission fluid, worn clutches, or a failing torque converter.
Fluid level and condition first. Dark burnt fluid is the transmission telling on itself.
Reading about sounds only goes so far. The tuner on our home page listens in your browser and tells you what it hears. The app goes further: it names the exact fault, checks it against your vehicle, and tells you how urgent it is.