I own a '98 Chevy Cavalier (or does it own me?).  Yesterday, after
driving 35 miles on the highway,  at the exit ramp, it became difficult
to turn right.  As the gas was applied, steering went back to normal.
At the traffic light, same problem turning left.

At low rpms, the steering is extremely difficult (sort of like driving
a car with no power steering).  When the engine is at higher rpms,
there is no difficulty with the steering.  If the car is idling, same
problem.

Synopsis: turning in either direction with no gas applied to the
engine, steering is difficult.  Any pressure on the gas pedal that
increases the engine's rpm's returns the steering to normal.

Suggestions?

Thanks.

Cas