* Power Steering Fluid: Low or contaminated power steering fluid is a very common cause. The groaning sound is often accompanied by a stiff steering wheel. Check your fluid level and condition. If it's low, top it off (with the correct fluid type – check your owner's manual). If it's dark, dirty, or smells burnt, it needs to be flushed and replaced.
* Power Steering Pump: A failing power steering pump can also cause groaning, especially under load (like turning). You might also notice whining or squealing sounds. This is a more serious issue requiring professional repair.
* Suspension Components: Worn-out suspension parts like ball joints, tie rod ends, control arm bushings, or CV joints can groan when stressed during turning. These parts allow for movement and when worn, the metal-on-metal contact creates the groaning noise. This often gets worse with bumps or uneven surfaces.
* Wheel Bearings: Worn wheel bearings can also produce groaning sounds, especially during turns. You might also notice rumbling or grinding noises.
* Steering Rack: A problem with the steering rack itself, such as worn gears or seals, can contribute to groaning. This is a more complex repair.
What to do:
1. Check your power steering fluid: This is the easiest and cheapest thing to check first.
2. Listen carefully: Try to pinpoint where the noise is coming from – front left, front right, etc. This can help narrow down the possible causes.
3. Have it inspected by a mechanic: If you're not comfortable diagnosing the problem yourself, take your car to a trusted mechanic for a proper inspection. They can accurately diagnose the problem and recommend the necessary repairs.
Ignoring a groaning noise while turning can lead to more serious damage and potentially dangerous driving conditions. It's best to address it promptly.
