The power steering fluid is low.

Fill the power steering system.

Refer to Checking and Adding Power Steering Fluid.

The power steering pump pressure is too low.

The steering gear is binding.

Repair or replace the power steering gear as necessary. Refer to Power Steering Gear Replacement.

The steering intermediate shaft is not installed properly.

Repair or replace the intermediate shaft seal as necessary.

Refer to Intermediate Steering Shaft Replacement in Steering Wheel and Column-Tilt.

The steering intermediate shaft bolt torque is too high.

Install the steering intermediate shaft bolt to specification.

Refer to Intermediate Steering Shaft Replacement in Steering Wheel and Column-Tilt.

The power steering pump or the power steering gear has an internal leak.

Replace the appropriate component as necessary. Refer to Power Steering Pump Replacement or Power Steering Gear Replacement.