If the sound is a loud growling , whining, noise you're probably low on Power Steering fluid. Now the cause of the fluids loss is WHERE ?
There are several things that can cause your Cadillac Deville to have transmission problems. The most common transmission problems are worn transmission gears.
Absolutely
How is the power steering fluid level. A low level might cause more load on the motor when turning.
Many things can cause that, the simplest cause being lack of power steering fluid.
dirt in the speed snsor bad speedo head in the dash
Heater coil
1 or more out of balance tires
A bad resistor or a bad switch.
One reason a 1998 Cadillac Deville would cut off while driving could be the fuel pump or the car is out of fuel. Another reason could be the spark plugs.
A bad alternator. Turning the steering wheel all the way is very demanding on the power steering which draws power from the engine and can cause the idle to dip down. A weak alternator is usually the cause for the stalling.
Low steering fluid can cause a steering wheel to whine when turning. A worn steering belt can also cause a steering wheel to whine when a car is being turned.
ummm power steering