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Ask the Mechanic: Deteriorating tires and rattling sounds

In today’s column we learn more on why wheels wear out and possible reasons for rattling sounds in your car.
Nida Zafar
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Every week, we take your questions about what is going on under the hood of your vehicle and pose them to a knowledgeable mechanic in the Greater Toronto Area. In today’s column we learn more on why wheels wear out and possible reasons for rattling sounds in your car.

Dear Ask a Mechanic,

I’m noticing my car’s rear tires are wearing out faster than the front tires. All four of my tires were purchased and installed in the same condition and at the same time. Can you explain why this may be and what steps I can take? – Worn Out

To answer your question, we reached out to the automotive team at Canadian Tire, that explained there are multiple reasons for rear tires wearing out faster than the front ones. Potential causes range from over or under inflated tires, to aggressive driving, excessive heat or alignment issues. But it’s important to remember that the wear may be a natural part of driving.

“Tire wear occurs mostly due to normal driving conditions and friction from road contact, including accelerating, braking and turning,” the team said in its emailed response. It recommended drivers experiencing unusual tire wear have the vehicle examined by a licensed garage to determine if any specific issues need to be dealt with.

Dear Ask a Mechanic,

I drive a Legacy that I’ve kept in good condition, and it hasn’t ever caused me problems. I was driving the other day and noticed it started making a rattling sound when going over bumps or uneven roads. What could the issue be? – Worried Driver

Canadian Tire’s automotive team explained loose, worn or broken vehicle parts are frequent culprits to rattling sounds. “This can be anything from a loose exhaust component to a damaged steering and suspension component.” The sound can be caused by problems ranging in severity and Canadian Tire’s automotive team recommended a professional examine the vehicle. They also suggested a road test be completed, “to accurately identify the cause of the noise and provide a recommended solution.”

 Ask a Mechanic is written by Nida Zafar, a reporter at The Pointer who grew up in a house full of mechanics in Scarborough, and occasionally poses your questions to her dad or brother. You can send your questions to wheels@thestar.ca. These answers are for informational purposes only. Please consult a certified mechanic before having any work done to your vehicle.

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