A certain amount of vibration is inevitable when driving, especially on poorly paved roads, but if you've been driving for a while, you probably know how much vibration feels right and how much means that something's going wrong. There can be any of a number of causes for the vibration -- maybe your tires are misaligned or unbalanced, or your shock absorbers are starting to go. But it could also indicate that there's some sort of internal problem in the tire itself. Even if the tire isn't the root cause of the vibration, the vibration could damage the tire and pretty soon you'll have a problem. So if your car has a bad case of the shimmy-shimmy shakes, especially if you notice this when you aren't driving on bad roads, take it to the mechanic right away to have it checked out. Too much vibration is almost always a sign that something is wrong.
For more information about tires and other related topics, follow the links below.
- America's Service Station. "What Are The Signs That You'll Need New Tires?" (Aug. 5, 2010) http://www.wefixeverything.com/tires.htm
- Dunlop Tires. "Care & Maintenance -- FAQs: How Do I Know When I Need New Tires?" (Aug. 5, 2010) http://www.dunloptires.com/care/faqs.html#needTires
- Goodyear Tires. "How Do I Know When I Need New Tires?" (Aug. 5, 2010) http://www.goodyeartires.com/faqs/Rotation.html
- The Auto Doc. "What are the signs that you need new tires?" (Aug. 5, 2010) http://www.theautodoc.net/pdfs/Tips%20New%20Tires.pdf
HowStuffWorks looks at what causes of tire blowouts and why they might happen more often in summer.