All four tires are supposed to be evenly aligned on the ground which means they should all be getting evenly worn. If they break entirely, it can cause a wheel/tire combination to fall off the car while at speed, leading to a very unsafe driving situation. If the wheel bearings are good, the wheel won't "wobble." Still, wheel bearings need to be replaced together; if there is a problem with one side, you need to replace the other wheel bearing on the same axle. They are engineered to last a very long time, but eventually, they will lose their lubricity, wear out, and need to be replaced. Once greased up and put back into place, wheel bearings need to be tightened in a very specific way. Needless to say, tightening a wheel bearing has to be done carefully and precisely. When you don’t have good wheel bearings to serve as a lubricant for the wheels and tires, there is going to be a lot of metal making contact with other metal. If you hear this type of noise, it could mean there is excessive amounts of play … Smart Car MPG – What Kind of Gas Mileage Can You Expect? When you have shakiness coming from the wheels, then you are bound to feel vibrations in the steering wheel as you’re holding it. Wheel looseness, or also called wheel play, is another common symptom of a bad wheel bearing. "Secondly, they follow RP 618, but usually leave out Step 8 - the dial indicator part. Hub bearings in good condition will feel smooth when you turn the axle because the grease inside is coating the bearings preventing metal-on-metal contact. December 19, 2011 © 2020 Heavy Duty Trucking, Bobit Business Media. Wheel-end Maintenance Saves Tires, Brakes. This is caused by excess heat that has built up inside the wheel bearing and lost most of its lubricity. So get the bearings replaced as soon as possible. How to Replace the Rear Hub Bearing on a Ford Explorer. He was 45 minutes early which was great and he was able to finish in 30 minutes which usually it takes a hour to do. You may have Clunking or knocking. When you back it off, you're freeing up the bearing to accommodate the weight. How to Replace a CV Joint in a Hyundai ... How to Fix a Wheel Bearing on a Nissan ... How to Replace a Tie Rod End in a Dodge ... How to Replace a Wheel Stud on a 2005 ... Be very detail-oriented when tightening wheel bearings, since an incorrect attempt could result in the entire wheel coming off. Otherwise, if you were to have a lot of friction, there would be a lot of heat generated in the wheels and tires of the vehicle. If this is not done properly, they can become too tight and that will cause excessive wear to the bearing itself, ultimately causing it to fail. This will not only cause too much friction, but it will generate grinding noise. The most popular service booked by readers of this article is Suspension Inspection. Information on tightening and adjusting wheel bearings. In fact, any machine with moving wheels is likely going to have wheel bearings. solid wood finger joint wood cabinets with shoji sliding doors. (Here’s What Happens), 4 Symptoms of a Bad Diesel Glow Plug (and Replacement Cost), 8 Best Mechanic Tool Sets for the DIY Mechanic, The Average Wheel Bearing Replacement Cost (Front and or Rear). These grinding noises will only get louder and louder as you drive faster and since they are coming from your wheels, other drivers will definitely take notice making it slightly embarrassing. by Jim Park. You’ll obviously want to replace the bad wheel bearings before it gets to this point. If all nine steps are followed, you'll get there. The additional "slack" is there to compensate for the weight of the truck that will soon be applied to the bearing, says Mark Stangl, sales manager at Timken. Lubricant spilled on the threads will affect torque, as will rust and dirt. "It's hard for some to conceive that such small a amount of bearing endplay can have such a dramatic impact on all those other components," says Tom Runels, engineering manager for drum brakes at Bendix Spicer Foundation Brake. I would recommend him to anyone. Though usually an indicator of a worn CV joint, a snapping or clicking sound may be caused by inadequate bearing clamping. You will need to use the wrench and your fingers. That being said, one warning sign of a worn out wheel bearing is a loud grinding or roaring sound coming from the tire area of your car. wheels and nuts quickly and easily by hand. It's a little annoying and inconvenient at times, and costly in terms of tire wear, leaky seals, etc., but short of having the wheel come right off, there's little real threat to a loose wheel bearing. "Over It helps the ABS system work when you need to make an emergency stop. Chrysler Town & Country - Brake Rotor/Disc Replacement (Front, Rear) - Gotha, Florida. The vibrations are felt in the entire car making it different than if only your steering wheel was shaking. So, how certain are you that the 200 foot-pounds recommended by RP 618 in the initial tightening is actually 200? As technology improved, newer vehicles were equipped with a "maintenance free" single wheel bearing designed to extend the life of wheel bearings without having to be serviced. Other more subtle indicators of loose wheel bearings include premature failure of the wheel seals, persistent intermittent ABS fault codes, and brake lining wear that appears as tapered wear on the inside edge of the top shoe and the outside edge of the lower shoe. Nobody wants a wheel-off occurrence. This is especially true if the tires were being replaced. Tighten the bearing for the first time. increasing) clamping force. Functional: Cinius Loose bearings will cause the wheel to run in negative camber (the top of the wheel tilts inward from the vertical centerline of the wheel). If this is not done properly, they can become too tight and that will cause excessive wear to the bearing itself, ultimately causing it to fail. I could've ended up buying unnecessary parts thinking it was something else . However, if the tire/wheel assembly moves back and forth, it is most likely due to worn out wheel bearings that need to be replaced as soon as possible. It may be especially noticeable when taking making sharp turns. The tire that has the most wear is usually the one that has the bad wheel bearing which needs to be replaced. Take your wrench and place it over the wheel bearing nut. This is due to the wheels having more friction which causes them to move out of place. "When the truck is up a jack, the 50 foot-pounds of torque applied in Step 4 of RP 618 does the same thing. They are not allowing your wheels to move smoothly anymore, so the movements of the wheel are slowing down. You can check wheels and nuts quickly and easily by hand. Wheel-off If you or a tire technician notice one side of your vehicle's tires wearing out quicker than the other, contact an ASE certified mechanic to road test and diagnose the cause of this tire wear. It's the same with tires and the ABS tone or exciter ring. Put Too Much Oil in Your Car? What would the symptoms of an overtightened wheel bearing be? Final tightening They torque the wheel nut on, back it off, torque it again, and then back off a quarter or half a turn of the nut. You might also hear snapping, popping or clicking sounds that may indicate a bad wheel bearing. If you back it off one-fourth of a turn, it will move away from the bearing about 0.020 inch - or about four times RP 618's maximum recommended end play of 0.005 inch. This shakiness will only get worse if the wheel bearings are not replaced. Anytime you notice any of the above symptoms of a worn out or failing wheel bearing, contact a dependable ASE certified mechanic who will road test, diagnose and replace the wheel bearings if needed. You may be driving along one day and find that your car will suddenly slow down on its own. Below are five of the most common symptoms associated with bad front or rear wheel bearings. ", If the technician stops there, the problems will begin. reasons lug nuts are loose is because they were over-tightened with an Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Over 25,000 topics, from beginner tips to technical guides, Check cars for recalls, common issues & maintenance costs, Hand-picked, community-rated professionals, Our mechanics make house calls in over 2,000 cities, Explore nationwide job opportunities for automotive technicians, Trusted mechanics, rated by thousands of happy car owners, Fleet maintenance with certified mobile mechanics. If you let this problem continue, it will eventually lead to the wheels not moving whatsoever. solid wood finger joint wood cabinets with shoji sliding doors. In a perfect world, the bearing would be loaded so there is zero endplay. If the wheel bearings are damaged then you are going to experience a lot of shakiness and vibrations coming from your wheels as you’re driving. Thanks again! That's where they get into trouble.". Symptoms of a Bad or Failing Speed Sensor. The nut itself will have notches in it on the ends. Between zero and one thou, we could be measuring deflection and still be in preload. However, if the bearing is not tightened enough, the bearing … It is the drivers side front wheel its coming from and its especially bad when I turn right. While it is possible that the wheel bearing was not damaged, or damaged enough to cause a concern for replacement. Copyright 2020 Leaf Group Ltd. / Leaf Group Media. However, the tires will be unevenly worn which is actually quite unusual. With the wheel flopping around on the end of the axle, the inside edges of the tires are going to wear prematurely. That's not much of a margin considering the potential consequences of improper adjustment. When wheels come off at highway speeds, people get hurt or killed. Once greased up and put back into place, wheel bearings need to be tightened in a very specific way. Car wheel speed sensors are an important safety feature. Loose lug nuts, cracked wheels and worn or damaged bearings are among the most frequent. Not only that, the rotation of your wheels and tires would not be so smooth anymore. It seldom is, according to Mike Beckett of M.D. By clicking the submit button below, you are agreeing with Bobit Business Media’s Privacy Policy and this outlined level of consent. The second problem Beckett points to is the travel of the nut across the thread pitch. Once the problem has been diagnosed, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair.