You won't be able to get the belt on.
probably not the alternator if it happens when only turning its gotta be the power steering or steering rack make sure everything is greased up could be the PS pump going out
Dark fluid means it's dirty and needs replacing.
Excessive wear on water pump, alternator, power steering pump bearings
Power steering will quit, Water pump won't work. Alternator will not charge.
when serpentine belt breaks alternator and water pump stop working along with power steering pump
You lose the functions of your power steering pump, water pump and alternator.
It probably isn't the alternator since it only happens when you turn the car tightly. Usually that would be caused by the steering hydraulic system due to a worn rack and pinion gear or power steering pump.
Typically, replacing any factory steering wheel that has the airbag incorporated into it, with any type or brand of aftermarket steering wheel, the airbag diagnostic module will "see" that there is an airbag missing, and it will request an illumination of the airbag/srs warning lite...
This could be a number of things. If the sqeeking happens when braking, then you probably need brakes. If it happens while driving, accelerating and turning then it could be the belt that is making noise. This can be due to a loose belt, worn tensioner or power steering fluid low or power steering issue.
when serpentine belt comes off, you will loose power steering, the alternator will stop charging the battery and the water pump will stop circulating coolant so you will have a flat battery in an overheated engine and very little steering capability
This should be very simple. You have a belt tensioner that keeps the belt tight. You should be able to use a 1/2 drive breaker bar to hold the idler up from the belt & remove the belt. Unless the springs are broken in it. This happens on lots of fords. The tensioner sometimes will get the belt so tight it will break the face off the alternator. I doubt you have this problem. Maybe you are pushing the wrong way on your breaker bar. Hope this helps If this is your problem you will have to have a new one
I am not a mechanic, but I know you have a problem. I would suggest draining the transmission and replacing it with the proper fluid. I wouldn't drive it because I think that might worsen the problem.