AfterMarketNews Auto Care Pro AutoCareCareerHub Auto-Video.com Brake&Frontend BodyShopBusiness Counterman EngineBuilder Fleet Equipment ImportCar Motorcycle & Powersports News Servicio Automotriz Shop Owner Tire Review Tech Shop Tomorrow's Tech Underhood Service Speedville

A/C Oil Service: Avoid Compressor Failure With Proper Maintenance

HVAC systems often fail because the air conditioning compressor fails. Not following the proper service procedures or compressor oil recommendations could be factors that contribute to premature compressor failure. Refrigerant Since the mid-‘90s,...

Read more...

How Ford's New Grille Shutters Control Airflow

Some new Ford vehicles feature active grille shutters — a new system that optimizes aerodynamics by using vents to control airflow through the grille to the cooling system and engine compartment. If air is required to cool the engine, the vents...

Read more...

How Engine Coolant Temperature Sensors Influence The Modern Powertrain

  Considering that roughly 1,500 or more ­different vehicle models are introduced into our domestic market each year, it’s becoming more difficult to predict how a powertrain control module (PCM) will utilize data from a particular sensor or...

Read more...

Nissan Maxima Brake Job Tips

Called the four-door sports car by Nissan, the 2004-2008 Maxima brake system is easy to service with very few complaints of brake noise or pulsation. The system used the same brake pads, rotors and calipers on all models. There were some changes in...

Read more...

Get Inside the Mind of a Modern Transmission

The transmission game has changed. Solenoids, sensors and computers have replaced vacuum lines, governors and kick down cables on modern automatic transmissions. The tools have also changed: Scan tools, scopes and meters have replaced pressure and...

Read more...

Saturn: Hesitation Between 35-50 mph

Condition Some customers may comment on a flat spot or hesitation between 35-50 mph (56-80 km/h) speed range. Cause The existing transmission calibration is programmed to maximize fuel economy and requires a greater throttle input than some customers...

Read more...

Audi: Vibrates at Idle

Complaint The customer says that the check engine light is on and that the vehicle vibrates at idle. Cause The customer’s complaint is confirmed, with the vehicle vibrating at idle, but the vibration was not felt at high speeds. A scan tool found...

Read more...

Step-by-Step Lexus Fuel Pump Replacement

We will use a third-generation 2006 Lexus LS430 as our case study for this fuel pump assembly replacement. First, discharge the fuel system pressure, disconnect the negative battery terminal and drain the fuel. Be sure to remove the rear seat cushion...

Read more...

Nissan: Squeak From Fuel Pump

Customer may report a squeak noise that is: • Coming from inside the vehicle; • Happens after driving for 30 minutes; • Is coming from under the vehicle or from the left rear area of the vehicle. If you confirm that a “squeak” noise...

Read more...

Midtronics Launches Informational Microsite

  Midtronics, Inc. has launched an informational microsite — or mini website — to provide customers with detailed information about the company’s newest diagnostic platform — the DSS-7000 Battery Service Diagnostic System. The microsite...

Read more...

German Tool Specialist KC Tool Announces Addition of Gedore Tools

As of August 1 KC Tool became the first certified reseller of Gedore Tools in the United States already adding more than 2,500 Gedore tools to its selection of German made tools. KC Tool plans to add an additional 6,000 Gedore Tools over the next few...

Read more...

United Stationers Expands Into Auto Aftermarket

United Stationers announced Sept. 11 that its wholly owned subsidiary, United Stationers Supply Co., signed an agreement to acquire MEDCO, a U.S. wholesaler of automotive aftermarket tools and supplies, and its affiliates including G2S Equipment de Fabrication...

Read more...

Print Print Email Email

By Larry Carley
Technical Editor

The classic symptom of a wheel bearing that is failing is cyclic noise. Most often a bad bearing will produce a chirping sound or a growl that changes in proportion to vehicle speed.

If a bad bearing is suspected, the wheel bearings should be inspected to see if there is any play. On late-model vehicles with sealed wheel bearings or bearing cartridges, there should usually be little or no play.

To check a wheel bearing, grasp the tire at the 12 and 6 o’clock positions and attempt to rock the tire. If any play can be felt, the bearings are loose and need to be replaced.

Also, rotate the tire by hand. Any roughness or noise from the bearings would also tell you the bearings are worn or damaged and need to be replaced.

Bearing play can be measured by placing a dial indicator against the hub and turning the wheel. Refer to the vehicle manufacturers specifications, but as a rule no more than .005 inches of play is allowed for most sealed wheel bearing and hub assemblies.

If one wheel bearing is loose or noisy, pay close attention to all of the other hubs on the vehicle, too, especially if the vehicle has a lot of miles on it or has been driven through axle deep water or been flooded. Chances are some of the other wheel bearings may also need to be replaced.

Customers should be warned not to put off replacing a noisy or loose wheel bearing. A bearing failure can often cause the wheel (or rear axle in the case of a rear axle bearing) to separate from the vehicle. This would cause a loss of steering control that might have potentially deadly consequences!

The following two tabs change content below.

AutoCarePro Team

Latest articles from our other sites:

A/C Oil Service: Avoid Compressor Failure With Proper Maintenance

HVAC systems often fail because the air conditioning compressor fails. Not following the proper service procedures or compressor oil recommendations could be factors that contribute to premature compressor...More

How Ford's New Grille Shutters Control Airflow

Some new Ford vehicles feature active grille shutters — a new system that optimizes aerodynamics by using vents to control airflow through the grille to the cooling system and engine compartment. If...More

Nissan Maxima Brake Job Tips

Called the four-door sports car by Nissan, the 2004-2008 Maxima brake system is easy to service with very few complaints of brake noise or pulsation. The system used the same brake pads, rotors and...More

Get Inside the Mind of a Modern Transmission

The transmission game has changed. Solenoids, sensors and computers have replaced vacuum lines, governors and kick down cables on modern automatic transmissions. The tools have also changed: Scan tools,...More

Audi sees boost in U.S. sales during first eight months of 2014

The Volkswagen Group saw another jump in deliveries in August – 2.7 percent increase year over year – with sales topping 740,500. From the start of the year through January, deliveries are up 5.6 percent...More

Audi: Vibrates at Idle

Complaint The customer says that the check engine light is on and that the vehicle vibrates at idle. Cause The customer’s complaint is confirmed, with the vehicle vibrating at idle, but the vibration...More

Introducing The New Snap-on SOLUS Edge Diagnostic Tool

Professional technicians will have an advantage in the repair shop and be ready for anything that comes their way with the latest diagnostic tool from Snap-on, the new SOLUS Edge. With sophisticated functionality,...More

ACDelco Impact Wrench Offers Five Preset Torque Settings

The ACDelco ETC (Electronic Torque Control) ARI2044B 3/8” Angle Impact Wrench with Digital Clutch is designed with a compact size of 2-3/8” for engine or tight space applications. With five preset...More