What is the likely cause of increased steering effort in a vehicle equipped with power steering?

The likely cause of increased steering effort in a vehicle equipped with power steering is a malfunction or failure within the power steering system itself. Several factors can contribute to this, including a low power steering fluid level, a failing power steering pump, a leak in the power steering system, or a blockage in the power steering lines. Low power steering fluid reduces the system's ability to generate hydraulic pressure, resulting in reduced assistance. A failing power steering pump may not be able to generate sufficient pressure, leading to increased steering effort. Leaks in the system cause a loss of fluid and pressure, while blockages restrict fluid flow. Other potential causes include a worn or damaged power steering belt (for belt-driven pumps) or a malfunction in the electronic power steering (EPS) system. The specific cause will depend on the vehicle's power steering system type and the observed symptoms.