* Low Power Steering Fluid: This is the most likely cause. Low fluid means there's not enough lubrication, leading to friction and groaning. Check your fluid level immediately.
* Power Steering Pump: A failing power steering pump is a major issue. It's responsible for pressurizing the fluid. A failing pump can produce groaning, whining, or squealing noises.
* Power Steering Rack and Pinion: This component converts the rotational motion of the steering wheel into linear motion for the wheels. Worn-out parts within the rack and pinion, such as the gears or seals, can cause groaning, especially when turning.
* Power Steering Hose Leaks: Leaks in the hoses prevent proper fluid circulation. This can lead to low fluid and the resulting groaning.
* Fluid Contamination: Dirt, debris, or other contaminants in the power steering fluid can increase friction and create a groaning sound.
* Belt Issues: Though less common, a worn or slipping serpentine belt (which often drives the power steering pump) can produce groaning sounds, especially under load (like turning the steering wheel).
It's crucial to address a groaning steering wheel promptly. Continuing to drive with a problem in the power steering system could lead to more extensive damage and potentially dangerous driving conditions. Have a mechanic diagnose the specific issue as soon as possible.
