You may want to check this with your dealer, but not too recently the cav and sunfire had a recall on the Power Steering. Something about a bad gear and power failure when making left hand turns. They would either replace the faulty gear or the whole rack and pinion assembly. Either way have it checked out. A steering problem is not a nice problem. It may cause accidents or death.
You can't. The power steering is driven by the motor. If the motor stops, there is no power assist for the steering.
Buy a new car!
sounds like the ignition control module
EVO sensor. Also known as steering speed sensor. Bad power steering pump, hose broke.
Your steering suddenly gets very heavy. You have to use a lot of force to turn the steering wheel to make it go where you wand it to.
Get up to full speed then suddenly put maximum turn on to the steering wheel.
suddenly becomes very light on a wet road
You hav a short in the steering column. TAke it to the garage before it catches on fire.