In the new generation vehicles the wheel bearings are of a sealed type and are not repairable the same would need to be replaced if diagnosed faulty. If while the vehicle is travelling at about 40 to 50 kmph and a rumbling noise is heard, accelerate up and down the intensity of the noise should increase or decrease respectively, in such an instance mostly the wheel bearings are in need of replacement. Back to Top Tyre Check Check tyre pressures every time you check oil, which means at every other gas fill up. It's a good idea to keep your own tyre pressure gauge in the glove box, as you may find a wide discrepancy from one service station gauge to the next. Keep an eye on your tyres for excessive tread wear or unusual wear patterns.
Unusual wear indicates incorrect inflation or wheel alignment problems.
On bias-ply tyres, wear that occurs only on both outer edges of the tread is a sign of under inflation. Wear that occurs only in the centre of the tread is a sign of over inflation. Radials though, due to their stiff tread construction tend to retain shape over a wide range of inflation pressures. Excessive camber, a wheel alignment adjustment, causes one side of the tread to wear more than the other side. The right rear goes to the right front, the right front goes to the left rear, and the left rear goes to the left front.