How to Do a Front End Alignment

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alignment	\”alignment	\”Making sure the front end of your car is in alignment is key to both a smooth ride and long tire life. Tim Fuller/Flickr (CC By 2.0)

A wheel alignment consists of adjusting the angles of the wheels so that they are parallel to each other and perpendicular to the ground. This maximizes the life of your tires and ensures straight driving on the road. If your front end is not aligned, you may find your car veering to the right or left.

Aligning the front end is a matter of adjusting the caster, camber and toe. The caster is the forward or backward tilt of the steering axis when viewed from the side. The camber is the tilt of your wheels when viewed from the front or the back. The toe is how much the front of your wheels are inward or outward (toe-in/toe-out) when viewed from the top [source: Grassroots Motorsports].

If your car is front-wheel drive, as the majority of cars are today, a front-end alignment will help with any pulling or unevenness you feel in the steering. But many cars, especially SUVs of any size, have all-wheel drive. These need to be aligned front and back at the same time, which is usually best left to the professionals. [source: Auto Quarterly]

No matter what kind of car you have, it\’s best to have a proper wheel alignment done by a professional car mechanic. However with the right tools, you can attempt to do it yourself on a front-wheel drive car. Here\’s how:

  1. Raise both front wheels on jack stands.
  2. Turn the car\’s electrical system on but not the engine so that the steering wheel will move. This is sometimes labeled "accessory" on the ignition.
  3. Look at one wheel at a time from the front of the car. Check to see which direction it\’s pointing. If it\’s pointing in toward the center of the car, it means that the outer tire rod has to be tightened. If it\’s pointing outward, the tire rod has to be loosened.
  4. Loosen the nut that connects the outer and the inner tire rods. This will allow you to loosen or tighten the tire rod.
  5. The outer tire rod must be turned counterclockwise or loosened if the wheel has to be turned more inward. If it has to be turned more outward, the tire rod should be turned clockwise or tightened.
  6. Turn the wheel straight after you\’ve made the adjustment, and check if the wheel is still tilting the wrong way. If that wheel is straight, repeat the procedure with the other wheel.

Take the car for a test ride to make sure it drives straight.

Now That\’s Interesting

The main difference between front-end alignment and wheel alignment is that front-end alignment focuses on the front two wheels while a wheel alignment is done on all four wheels.

Originally Published: Jun 3, 2011

Front End Alignment FAQ

What are the signs that your car needs an alignment?

A common sign that an alignment is required is when your car pulls to one side or the other without you turning the wheel. Other signs include a steering wheel that is not centered when driving straight, loose handling and abnormal tire wear on one side of the car.

Can a bad alignment cause shaking?

A poor alignment can cause shaking and excessive vibration in your car, especially when you speed up on a freeway. The alignment can lead to a state called \’bubbling\’.

How do you check wheel alignment at home?

Wheel alignment cannot be checked at home, as it’s easier to check while the vehicle is in motion. However, you should take it to an auto shop to confirm whether the alignment is off and have it fixed.

Can you do wheel alignment at home?

You can perform the job at home with the right tools, though only if you have experience working on your own car. Otherwise it’s best done by a professional mechanic.

How much does it cost to have your front end aligned?

Getting the front end of your car aligned generally costs between $50 and $75, though the price may run higher depending on where you live. The process is either done manually or using an automated computer setup.

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