May 24, 2014  Box truck has Michelin tires on front, either Goodrich or Goodyear on rear. All bought at the same time 7 years ago. Only driven maybe 5,000 miles since then so all tire treads appear as new but front tires developing small cracks in sidewalls. Rear tires still appear as new. Series of sidewall cracks about 8' long appeared in front right tire, approx 5/8' from rim, with the longest crack about 4' long and 0.11' deep. No failure yet, and the americas tire dealer says the cracks are not a problem, but the number of complaints of sidewall cracking and blowouts in michelin tires concerns us. May 02, 2006  Tires will typically dry rot at the sidewalls from being exposed to the sun over a long period - say ten years or more. This is why this problem with the Michelin Cross Terrain tires is strange since my tires are only five years old. Hope that clears it up.

• Michelin Tire Recall Dry Rot
• Michelin Tires Cracking On Sidewall Road
• Michelin Tires Cracking Around Tread
• Michelin Tires Cracking On Sidewall Tires

You should check your tires for wear at least once a month and before and after long trips. To determine whether you need to (a) buy new tires, (b) have your wheels balanced, (c) have your wheels aligned, or (d) change your driving habits, simply read your tire treads for clues. Table 1 and Figure 1 show you what to look for.

Table 1: How to Read Your Treads

Apr 29, 2013  The rubber loses its flexibility and begins to crack at the surface, and the structure becomes more and more brittle (think of a really old rubber band), leading to sidewall. For example, a vehicle parked outside instead of in a garage will constantly expose its tires to the rays of the sun, increasing the likelihood of cracking. Additionally, some sidewall cracking has been linked to abrasion from parking against a curb, or the excessive use of tire cleaners/dressings that inadvertently remove some of the tire's.

Underinflated tires wear out faster, create excessive heat, increase fuel consumption, and make your car harder to handle. Overinflated tires can “blow out” more easily, wear out faster, and make the car unstable and unsafe to handle. And a new set of tires on wheels that are out of alignment can wear out completely in as little as one day of hard driving!

To determine what’s causing problems with your tires, try the following:

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• Look for things embedded in each tire. Do you see nails, stones, or other debris embedded in the treads? Remove them. But if you’re going to remove a nail, first make sure that your spare tire is inflated and in usable shape.

If you hear a hissing sound when you pull a nail, push the nail back in quickly and take the tire to be fixed. If you aren’t sure whether air is escaping, put some soapy water on the hole and look for the bubbles made by escaping air. If you’re still not sure whether the nail may have caused a leak, check your air pressure and then check it again the next day to see whether it’s lower. Tires with leaks should be patched by a professional. If the leak persists, get a new tire.

• Look at the sidewalls. Check for deeply scuffed or worn areas, bulges or bubbles, small slits, or holes. Do the tires fit evenly and snugly around the wheel rims?

Michelin Tire Recall Dry Rot

• Look at the treads. Most tires have tread-wear indicators built into them (see Figure 2). These bars of hard rubber are normally invisible but appear across treads that have been worn down to 1/16th of an inch of the surface of the tire (the legal limit in most states). If these indicators appear in two or three different places, less than 120 degrees apart on the circumference of the tire, replace the tire.

Michelin Tires Cracking On Sidewall Road

If your tires don’t show these indicators and you think that they may be worn below legal tolerances, place a Lincoln penny head-down in the groove between the treads. If you can see the top of Lincoln’s head, your tire probably needs to be replaced.

To measure tread wear more exactly, place a thin ruler into the tread and measure the distance from the base of the tread to the surface. It should be more than 1/16 inch deep. (Note: If your front tires are more worn than your rear ones and show abnormal wear patterns, you probably need to have your wheels aligned.)

• Pay attention to leaks. If you keep losing air in your tires, have your local service station check them for leaks. Sometimes an ill-fitting rim causes a leak. The garage has a machine that can fix this problem easily.

Michelin Tires Cracking Around Tread

If the garage can’t find a leak, your rims fit properly, and you’re still losing air, you probably have a faulty tire valve that’s allowing air to escape. You can buy tire valves to replace the ones on your car. Look for the number molded into the base of the tire valves; then buy new ones that match it.

Michelin Tires Cracking On Sidewall Tires

In the process of replacing the valve, you will lose most of the air from the tire, so either plan to do this job at a gas station where you can have access to an air hose, or have a mechanic replace the valve for you.