- Faulty Ball Joint: This connects control arms to wheel hubs and enables smooth wheel movement. A worn-out ball joint can cause a squeaking sound due to friction.
- Loose Brake Caliper Bolts: If brake caliper bolts are not tightened properly, they can move back and forth, creating a squeaking noise when brakes are applied.
- Worn-out Tie Rod Ends: These connect the steering rack to the wheels, allowing the wheels to turn. Worn tie-rod ends can create squeaks while turning.
- Rusty Springs: Rust buildup on leaf springs or coil springs can produce squeaking sounds.
- Worn-out Struts: Struts support a car’s weight, dampen impacts, and allow the wheels to move up and down. Worn struts can lead to squeaking sounds when the suspension system is in use.
- Sway Bar Link: Sway bar links connect the sway bar to the suspension. Worn-out links or loose mounting hardware can cause a squeaking noise.
Solution:
- Inspect: Visually examine the underside of your vehicle. If the cause seems to be coming from a suspension or steering part, it’s best to have it checked by a professional.
- Lubrication: Use a silicone-based lubricant to spray and lubricate movable joints, hinges, springs, and linkages associated with the suspension system. Make sure to follow any manufacturer’s instructions and precautions.
- Tighten: Check for any loose suspension bolts, nuts, or fasteners and tighten them properly using the recommended torque specifications.
- Replace: If certain parts are worn or damaged, such as ball joints, tie-rod ends, sway bar links, or struts, it’s recommended to replace them with genuine parts as suggested by your vehicle’s manufacturer.
- Rust Prevention: Coat leaf springs and metal parts prone to rust with a specialized anti-rust spray for long-term protection.
- Professional Assistance: If the squeak persists or you are not comfortable making the repairs yourself, consult with a qualified mechanic or take your vehicle to a reliable auto repair shop.
Note: Squeaking sounds beneath a vehicle can sometimes indicate a serious problem, especially if they are accompanied by other symptoms like vibrations, changes in handling, or uneven tire wear. If you are unsure about the source of the squeak or the issue persists after your attempts, get a professional diagnosis and repair.
