What controls the AWD system?

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What controls the AWD system?

Almost all powertrain controls are electromechanical using a computer as the controller. These include powertrain control of the accelerator pedal with the latest being All Wheel Drive (AWD). The brakes and damping are also electromechanical under electronic control.

What system are wheel bearings part of?

steering
Wheel bearings are an essential part of your vehicle’s steering and suspension system. Wheel bearings are responsible for keeping the wheels attached to the vehicle. They allow each wheel to spin freely and at the desired speed.

What happens when front wheel bearings go bad?

If a wheel bearing goes bad, more friction will be placed on the wheel, and the wheel will start to wobble. The most common symptom with a bad wheel bearing is a loud noise coming from the tire or wheel of the vehicle. It will sound like metal grinding on metal and will get louder as the vehicle goes faster.

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How do you know which front wheel bearing is bad while driving?

You can test this by gently swaying your car while driving slowly. If the noise lessens when you sway right, then the damaged bearing is likely on a left wheel bearing. If it lessens when you sway left, a right wheel bearing is likely broken.

Are front and back wheel bearings the same?

Both are generally tapered roller bearings, both allow one part to spin relative to another. The front tends to have inner and outer bearings close to one another – on the wheel spindle – while the back will have an outer bearing at the wheel and the inner end will track in the side gear in the differential.

Do I need an alignment after replacing wheel bearings?

Anytime the steering/suspension system has been taken apart for whatever reason, its always a good idea to have alignment checked. You shouldn’t have to have an alignment after a bearing/axle.

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Do you need an alignment after replacing wheel bearing?

Can your wheel fall off from a bad wheel bearing?

A: A bad wheel bearing can cause several potentially dangerous situations, starting with your vehicle not being as responsive as it should be. Last, but not least, your wheel can fall off completely while driving, as the bearing is an essential part of keeping the wheel attached to your car.

What is AWD (all-wheel drive)?

This system was originally designed primarily for enhanced off-road use. The typical AWD vehicle will incorporate a transfer case, a front and rear differential, but also some form of coupling device.

What are wheel bearings and how do they work?

Wheel bearings reduce friction, from the tire and wheel, with the hardened steel balls (rollers) and a smooth inner and outer metal surface (inner and outer race). The race provides a smooth surface for the rollers to roll across. The rollers “bear” the load and support the front and rear axle of your heavy-duty vehicle as you drive along the road.

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What are the symptoms of a bad front wheel bearing?

5 Bad Front Wheel Bearing Symptoms. 1 Uneven Tire Wear. The first symptom of a bad front wheel bearing is uneven tire wear. When the front wheel bearings wear out, they tend to wear out 2 Grinding Noise. 3 Steering Wheel Vibrates. 4 Vehicle Pulls to One Side. 5 Excess Wobble or Play in Wheels.

Why service 4WD and AWD drivetrains?

4WD and AWD drivetrains have become increasingly popular and vehicle populations continue to rise that feature traction-controlled all-wheel-drive technology. Familiarity with and the ability for your shop to service these vehicles is a major factor in terms of your shop’s capabilities and bottom line.