I think I hit the bottom of my car on a rough curb. Should I be worried?

If you think you hit the bottom of your car on a rough curb, there are several potential issues you should be aware of and check for to ensure your vehicle's safety and performance.

Types of Possible Damage

Tire and Wheel Damage

Hitting a curb can cause significant damage to your tires and wheels. This includes sidewall damage, punctures, or bending of the wheel rims. Even if the damage is not immediately visible, the tire's structure could be weakened, leading to potential blowouts or uneven tire wear15.

Suspension System

The suspension system is highly vulnerable to curb impacts. Components such as control arms, tie rods, and wheel bearings can be damaged, leading to misalignment, loose steering, uneven tire wear, and a wobbly or difficult-to-control steering feel124.

Exhaust System

The exhaust system, particularly the muffler, can be dented or cracked from hitting a curb. Listen for excessively loud exhaust sounds or rattling noises as indicators of damage. In severe cases, the catalytic converter might also be affected, triggering the check engine light12.

Transmission and Driveshaft

In some cases, especially with front-wheel drive vehicles, hitting a curb can damage the transmission case or shift the axle and wheel shaft into the transmission. This can cause problems with shifting and potentially damage transmission fluid and cooling lines4.

Frame and Underbody

While minor curb impacts are unlikely to damage the car's frame, repeated or severe impacts can cause structural damage to the frame, as well as damage to the underbody protection panels, oil pan, differential housing, or transmission housing, leading to fluid leaks23.

Alignment and Steering

Hitting a curb can throw off your car’s wheel alignment, causing the vehicle to drift or pull to one side. This can lead to uneven tire wear and decreased gas mileage345.

Signs of Damage

• Tire Bulges or Blistering: Check for any deformities on the tire sidewall.
• Steering Issues: If the steering feels wobbly, loose, or if the car pulls to one side.
• Noise: Grinding noises from wheel bearings, rattling from the exhaust system, or clunking noises from the driveshaft.
• Performance Issues: Problems with shifting, uneven tire wear, or a bouncy ride.
• Fluid Leaks: Check for any signs of oil or transmission fluid leaks.

What to Do Next

• Inspect Your Vehicle: Check the tires, wheels, suspension components, and exhaust system for any visible damage.
• Test Drive: Take your car for a test drive to see if there are any unusual noises or performance issues.
• Professional Inspection: If you notice any signs of damage or are unsure, it is advisable to have your car inspected by a professional mechanic to identify and address any potential issues before they become more serious.

By being proactive and checking for these signs of damage, you can prevent minor issues from becoming major problems.