My power steering is not working?

If your power steering is not working properly on your 2003 Chevy Silverado, even though the fluid level is full and there are no obvious obstructions, there are a few potential causes to consider. Here are some suggestions to troubleshoot the issue:

Power Steering Pump: The power steering pump is responsible for providing hydraulic pressure to assist with steering. It's possible that the pump may be faulty or experiencing a problem. Check the power steering pump belt to ensure it is properly tensioned and not slipping. If the belt appears fine, consider having the power steering pump inspected by a mechanic.

Power Steering Fluid Quality: Although you mentioned that the fluid level is full, it's worth considering the quality of the fluid. Over time, power steering fluid can become contaminated or deteriorate, leading to reduced effectiveness. If the fluid appears old, dirty, or discolored, it may be necessary to flush and replace the fluid.

Power Steering System Leak: Inspect the power steering system for any signs of leaks. A leaking hose, fitting, or power steering component could cause a loss of hydraulic pressure, resulting in difficulty steering. Look for any visible fluid leaks around the power steering pump, hoses, and connections. If you find any leaks, repairs or replacements may be required.

Steering Rack or Gearbox Issues: The steering rack or gearbox could be malfunctioning, causing difficulty in steering. Internal components of the steering rack or gearbox may be damaged or worn, affecting the power steering assistance. A professional inspection may be necessary to diagnose and repair any issues with these components.

Electrical Power Steering (if equipped): If your Silverado model is equipped with an electrical power steering system, there could be an issue with the electrical components. Faulty sensors, wiring, or the power steering control module could cause a loss of power assistance. In this case, it would be advisable to have the electrical system diagnosed by a qualified technician.