I would suspect a worn or loose drive belt. Can also be an alternator or A/C compressor bearing failing.
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).
You may need to adjust the tension on the belt.
A worn serpentine belt will make a high-pitched squeal when the engine is running. The faster you go, the louder the high-pitched will become.
Yes
You should check the tension on the belts on ur engine. If they don't hve enough tension,the belts will squeal when running accesories such as the heater since it draws alot of power.
squeal is a lose belt or one of the accessory will need to be replaced soon
I'd check the throttle cable or the kickdown cable. That squeal you heard in the engine compartment might have been a cable breaking.
Incorrect tension, or contamination. A bad bearing in the alternator, A/C compressor, etc will cause excessive stress on the belt, and it will squeal as is slides over the stiff parts. Also, serpentine belts are very sensitive to grease or oil. DO NOT use traditional V-belt dressing on a serpentine belt. The least it will do is squeal. At worst, it will pop off while the engine is running and you're under the hood looking at something. They have quite the bite when they let go.
It's either loose or you have a bearing going out on idler or an accessory.
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.
squeal of fortune
probably not your engine, sounds like its time for new brake pads. if this doesnt correct it have the master brake cylinder checked