Worn out serpentine belt and/or belt tensioner.
That depends on how, when and where it is squealing. For example, if the brakes squeal when applied, the brake pads are probably worn down. A squeal from the engine compartment whenever the engine is running could be a loose serpentine belt (especially if the squeal changes a little when you rev the engine).
These creatures are very vocal. They will squeal at all kinds of things. It will not be a bad thing if it squeals like this if you know there is nothing wrong with it.
Most animals that squeal usually squeal when the are attacked. These animals are pigs, tapirs, and lots of others.
Automatic transmission fluid does not squeal. You have a different problem. Brakes squeal, bearings squeal, and belts squeal. Fluids do not squeal. You had better take your vehicle to a mechanic.
Here's a sentence with squeal as a verb: "The child will squeal when he opens his Christmas present." Here's a sentence with squeal as a noun: "The child's squeal was deafening as he opened his Christmas present." Let me hear you squeal like a pig.
squeal of fortune
I jumped when I heard the pig squeal. There is nothing in the world quite like a four year old girl's squeal of delight. The rambunctious teenager made his tires squeal.
all hamsters squeal if they r scared.
It means that they are either in pain or scared.
A high-pitched squeal sort of noise emitted when a girl (sometimes a guy) is frightened, surprised, bumped into, etc.
Ha-ha you squeal
loose alternator belt