Power steer broke 1997 Plymoth Grand voyger

sound like lack of lubrication at the steering joints, your ball joints need greasing and make sure you bleed power steering system, check power steering fluid level.if low more like power steering system full of air need bleeding.

Sounds like your power steering belt broke.

Pretty much sounds as if the drive belt has come off the engine. When that happens, your power steering pump won't turn (hard steering), check gauges or check engine light comes on (because alternator no longer is turning, and engine will overheat (water pump not turning either).
Replace the belt and check all pulleys to make sure none are binding or loose (could be why belt came off other than failure from age...takes a minute to check and avoids problems later)

sounds like eithor your belt broke or you broke a power steering line see if leaking power steering fluid

If the car stalled while driving you would of lost power steering and the brakes would only have two or three pumps before it felt reaaly hard. Even if the idle fell low enough you may of experienced these symptoms

Either the check valve within the pump or the pump itself has failed or the steering rack has gone bad

this is the symptom of a defective steering rack or power steering pump.

Well, it is easy to test the struts. 1st look for oil deposits around the strut tower. 2nd push on the vehicle's bumper or hood, down with your weight. See how many times the vehicle bounces. It shouldn't bounce more than 1 1/2 times anything more than that might need replaced. As for the gear box...I think you got that right...needs replaced.

The hoses for your power steering should be on the right of the engine, as to the ease of access, the lines are right there, however they're a little tough to reach without the proper tools and a lift.

it is called cavitation something imploded or one of your check valves are bad