AUTONET TV

A Bright Spark (Ignition Coil Replacement)

Ever wonder how your vehicle’s engine is able to take the 12-volts from its battery and ramp that up to as high as the tens of thousands of volts it takes to fire its spark plugs? The secret is something called an ignition coil.  Most newer vehicles have an ignition coil at each cylinder, but older ones have a coil that serves all of the spark plugs. 

There are telltale signs that you have an ignition coil problem.  As you might expect, one symptom is it’s hard to start your engine or it won’t start at all.  If your engine is misfiring or not running smoothly or you see the Check Engine light come on, those all could point to an ignition coil failure.

Several things can contribute to ignition coil trouble in addition to normal wear and tear. Moisture and dirt may have gotten inside the coil, plus the heat and vibration of your engine over time can contribute to them going bad.  Bad spark plugs or plug wires can also be a cause.  

While ignition coils can last 100,000 miles/160,000 km, depending on how you drive and in what conditions.  If you start noticing some of the signs and symptoms just described, it’s a good idea to schedule a visit to see us so a technician can diagnose what’s wrong. Driving too long with an engine misfiring can damage your catalytic converter, and that can be expensive to replace.

A technician will thoroughly check your ignition system and determine where the failure is.  If it’s only one coil that’s bad, it may be the only thing that will need replacing.  If your vehicle has a distributor, it may also need to be replaced.  Properly-working ignition coils will help your vehicle operate at its best and help prevent future engine damage.

McLearen Shell
3043 Centreville Road
Herndon, VA 20171
(703) 318-7744
http://www.mclearenshell.com

Bump in the Road (Alignment)

There's something you can do that helps your tires last longer, wear more evenly and your vehicle handle better.  "Sign me up," you say! Wondering what that is? It's aligning your wheels, and it will literally point you in the right direction when it comes to a better and safer driving experience.

When your vehicle was designed, the engineers made sure your tires were all pointing the same way by designing the suspension to make optimal contact with the road. That way the ride is smooth, you don't feel vibrations or shimmying and your vehicle travels in a straight line, without pulling to one side or the other.

Unfortunately, your vehicle is not brand new; time and distance take their toll.  After hitting countless bumps, potholes, or the occasional curb, your suspension gets knocked a little out of kilter.  Those precise angles the engineers planned on for your vehicle? They get out of whack

Uneven or premature tire wear is one of the first signs your alignment may be off.  If you are driving straight and your steering wheel isn't pointing straight, that's another indication alignment might need checking. Tire squealing can also be a clue.

When you bring your vehicle in for an alignment, we use equipment designed to measure the tilts and angles of your suspension's parts.  The technician will also check to see if any of the vehicle's suspension components are worn or broken.  We will also check your steering angle sensor to make sure it's set properly. 

The process is different for vehicles that are front-wheel drive, rear-wheel drive, all-wheel drive, or 4-wheel drive. 

After your alignment, your tires should wear more evenly, your steering should be straight and your wheels vibration-free.  If it's been a while since you've had your vehicle aligned, bring it in and we'll check it.  Usually, your alignment will be a little off after one or two years of driving, and it's wise to follow your vehicle manufacturer's recommendation for how often your model should be checked.

McLearen Shell
3043 Centreville Road
Herndon, VA 20171
(703) 318-7744
http://www.mclearenshell.com