1. Decreased Hydraulic Pressure: Power steering systems rely on hydraulic pressure to assist in turning the wheels. When the power steering fluid level is low, there's not enough fluid to maintain sufficient pressure in the system.
2. Air in the System: As the fluid level drops, air can enter the power steering system. Air pockets in the system can compress when you turn the steering wheel, creating a groaning noise.
3. Pump Strain: With low fluid levels, the power steering pump has to work harder to maintain the necessary pressure. This increased effort can cause the pump to strain and produce a groaning sound.
4. Increased Friction: The reduced fluid level means that there's less lubrication between the moving parts of the steering system. This increased friction can also contribute to the groaning noise.
5. Worn Components: In some cases, low power steering fluid can exacerbate existing wear and tear on the steering system's components. This can further increase the groaning noise.
It's important to address low power steering fluid as soon as possible to avoid further damage to the system. Check the fluid level regularly and top it off as needed. If the fluid level keeps dropping, there might be a leak in the system that needs to be repaired. If the groaning noise persists despite maintaining proper fluid levels, it's advisable to have your vehicle inspected by a qualified mechanic.
