I'm hearing a very loud sound from my 1999 gram am gt also,

if you have a bad power steering pump you would know it. when you turn the steering wheel you would hear the pump making a loud sound that you can pin point by having someone stand in front of the car (with the hood open) listen for this abnormal sound.

Check the fluid level in your power steering pump reservoir. Sounds like you may have air in the pump.

Take a look at the reservoir. What color is the fluid?
The fluid may need to be filled or flushed. Everyone allways seems to forget the P/S fluid, Brake fluid, and trani fluid. Oh well, So anyways if the fluid Isn't clean or low that could be the problem. If it is fine but you hear a loud whining noise and/or the fluid is foaming you may have a leak in the suction line or a defective pump.

This sounds like a power steering issue. Check the fluid and if it is full then the pump may be going out. The way to check if the problem is the power steering is to turn the wheel while the engine is running. If the pitch changes then it is a power steering issue. Hope this helps. Good luck.

How about checking the fan belts, they may need adjusting or replacing.

if the winning noise gets louder when you turn the steering wheel, it is the power steering pump.
99 to 04 intrepids have a serpintine belt with a self tightner.what i did with mine is **** the old power steering fluid out with a shop vac.replaced half with new fluid and top up with a transmission/power steering fluid additive.the noise went away after a couple of days.

sounds like a high pressure hose or rack and pinion would have to get underneath and take a good look at it while someone starts it and turns the whell all the way to tyhe left or right and hold it there till you see the leak

power steering will make a buzz nosie and it will get worse when the steering wheel is turned. It usually is just low n power steering fluid. Check that first. The other is a belt squeal noise, worse when turning, which usually just requires tightening unless it's self tensioning syste. Or replace the belt. Need a better description of the nosie and results of fluid level check. Report back on findings.
Please rate as fixya if this resolves your problem.

The power steering pump could be bad,The rack and pinion could be bad.The belt could be off the pump.

Sounds like u have a pinched line somewhere?? have you checked yours lines??? if u have and no pinch sounds like ur power steering went bad and it's not hard to change...