Why does your front driver side tire wobble in your 1991 ford f150?

Answer 1

the 3 main reasons a tire will wobble are, the wheel bearing is loose or worn. the wheel is buckled the lug nuts are loose You didn't mention whether it is a 2 or 4 wheel drive pickup; but, first, make sure all the lug nuts holding the rim and tire on are properly torqued. If these nuts (usually 5 or 6) aren't tightened properly the wheel can loosen, wobble, and eventually break the wheel studs off, losing the tire and rim in the process. If this happens, you and everyone around you WILL notice. Secondly, the front wheel assemblies (including the tire, rim, and hub) ride on a set of bearings which in turn, ride on the spindle, or axle end. These bearings have to be periodically removed, washed in solvent, inspected for wear, pitting, cracks or loss of surface. They are then repacked with whatever grease is specified by the car maker, and then re-installed in the hub and onto the spindle. They then have to be accurately adjusted to specification. To determine whether your lug nuts are the culprit, or, whether it's the bearings, jack the corner of the car up, place a jack stand or blocking under the car in a strong area such as the cross member or the frame, and then shake the tire while observing the lug nuts. If they look tight (check them with a wrench) then rotate the wheel assembly and see if it makes grating, rumbling noises. Does it rock back and forth? Does it feel loose in any way? Then it's most likely the wheel bearings. When bearings are as bad as you describe, it's usually a good idea to let a shop inspect them. Losing a wheel (which is what you will very soon do) is catastrophic and could easily take someone's life. Be sure!!! If it makes no noises the wheel itself may simply be bent from striking a curb. You should replace it as soon as possible. Good luck and God bless. Sorry, forgot to logon before I gave the answer. Don't let a bent wheel go for long. I used to be a mechanic and I've seen some serious accidents because people thought they could drive on a bent wheel, or run a "midget" spare tire at freeway speeds. Again, good luck and God bless.