* Worn or damaged tires: Uneven tire wear, particularly cupping or feathering, can cause wandering or pulling at highway speeds. Check the tire tread depth and look for any visible damage. Tire pressure should also be checked and adjusted to the manufacturer's recommendation (found on a sticker usually inside the driver's side doorjamb).
* Suspension components: Worn-out ball joints, tie rod ends, control arm bushings, or shocks/struts can all contribute to poor steering response and wandering at higher speeds. These components are subject to wear and tear over time. A mechanic can inspect these parts for excessive play or damage.
* Steering linkage: Problems with the steering linkage (tie rods, idler arm, etc.) can also lead to imprecise steering. Again, a mechanic's inspection is needed.
* Power steering system: Low power steering fluid, a failing power steering pump, or leaks in the power steering system can affect steering feel and responsiveness. Check the power steering fluid level (refer to your owner's manual for location and proper level).
* Alignment issues: A misaligned front end will cause the car to pull to one side or wander. An alignment check and adjustment can resolve this.
* Wheel bearing issues: Worn wheel bearings can create a vibration or wandering feeling, especially at higher speeds. This often manifests as a humming or rumbling noise as well.
What you should do:
1. Safety first: If the steering feels unsafe or unpredictable, avoid driving the car until it's been inspected by a qualified mechanic.
2. Visual inspection: Check your tires, and visually inspect the suspension components for obvious damage.
3. Mechanic inspection: Take your LeSabre to a trusted mechanic for a thorough inspection of the steering and suspension system. Describe the problem accurately (wandering, pulling, vibration, etc.) They'll be able to diagnose the specific problem and recommend the necessary repairs.
Ignoring steering problems can be dangerous. Have it checked out promptly.
