Most of the population think tire problems start and end with a “flat” and “incorrectly inflated tires” but there are other problems that can occur. A good rule of thumb is to compare the front left tire to the front right tire and a similar way with the back tire as tires don’t tend to become worn at the same rate.
Bald tires: A tire becomes bald from overuse which may make the tire blowout in hot conditions. This will mean that you are more likely to lose condition in extreme conditions. Such tires are much more likely to lose pressure. There should be exposed indicator bars if your tires need to be replaced.
Bubbles: External bulges in the tire. A rubber tire consists of “cords” which are at 90 degrees to the tire’s run (It might help to think of it in similar way to a piece of paper, it is harder to tear left to right than tear downwards). A forceful object can separate the cords and create a bubble. Having more than bubble or bulge is rare but occurrences have been spotted, probably due to manufacturing defect.
Flat spots: A worn part of the tire, caused by parking for long periods in the same place or by locking your brakes. You should fill your tires to capacity; drive at least 150 miles (which will solve the problem if the difficulty was being parked in one place). If it is not fixed, release some of the air in the tire through use of a valve. And if it still seems a problem, take it to a mechanic.
Squealing: This tends to occur when the vehicle is cornering. This is due to an uneven tread – some peeling may become apparent when examining the tire. Again it can be fixed by increasing the pressure in your tires. It may be even be due to loose wheels, in which case the wheel nuts should be tightened.
Underinflation: Generally, tires not being at the correct thickness which as well as making them hard to drive with may also create a burning smell due to excess heat. You can obtain Tire Pressure Monitoring Systems to check the problem or you could just check it at a service station. It’s a good idea to do this before going a long journey as you are likely to be stuck somewhere and it might be dangerous to stop.
Vibrations: This are generally felt when you operate the brake pedal or when the brake caliper sticks (these are used to slow the vehicle). Problems similar to vibrations which might be undetected by passengers in the car may be found by using a roller device called a Tire Problem Detector over the tire. Apparently they are due to an out-of-balance wheel, as it relates to the axel and its partner wheel. It’s quite usual for a tire which is more than a year old to become uneven on one side. It can be fixed by loosening a wheel weight.