Wilmington Auto Repair

If your vehicle has an internal combustion engine, it depends on two things to make propulsion power for you to be able to motor on down the road: fuel and air.  The engine mixes the two in just the right proportion so that they can be ignited, creating a series of tiny explosions that are coordinated in such a way that your vehicle moves steadily ahead. One of the key parts to making sure that mixture of air and fuel is correct is a little tube that measures the amount of air that’s coming into the engine.  It’s called a Mass Air Flow sensor, or MAF sensor.  There are two wires in this tube, one of which is heated up with electricity and the other isn’t.  When the air flows over the heated wire, it cools.  When the temperature of the two sensing wires is different, the MAF sensor either increases or decreases the current to the heated wire to try to make it the same as the other wire. That’s sent to a small computer that tells the engin ... read more

Maybe that little sticker on your windshield is giving you the reminder that it’s time for your vehicle to have an oil change.  You’ve thought, “Aw, I can skip this one and save myself a little money.”  When it comes to things you should never ignore on your vehicle, timely oil changes are number one on the list.   When the oil stays in your vehicle too long, it can accumulate dirty particles and begin to break down, defeating its lubricating properties.  Skipping or delaying an oil change can lead to far more expensive repairs down the line. Another is seeing a warning light and doing nothing about it.  Lights that advise you to check your engine or tell you things are running hotter than usual under the hood can be early warning signs to have a technician determine why.  Consider getting the answer earlier rather than later.  It could save you major headaches and money. Don’t skip having important fluids checked. That i ... read more

When it comes to ease and precision of steering, today’s vehicles are engineering marvels.  One of the keys to just how good steering is lies in the refinement of power-assisted steering which we know simply as power steering.  At the heart of the system is an electrically or belt-driven power steering pump.  It can apply hundreds of pounds of hydraulic pressure to the steering gear so you can turn your heavy vehicle with little effort. The more time and distance your vehicle travels, the more wear your power steering pump experiences. One sign your pump may be aging is that you hear a whining or groaning sound coming from your wheels when you turn. You also may feel a vibration through the steering wheel, or the wheel is harder to turn or responding more slowly than normal.  Another sign of trouble with the power steering pump is power steering fluid (reddish-brown) leaks on the ground around your vehicle. If you encounter these symptoms, have us check your v ... read more

When you push on your brake pedal, you should find your vehicle easy to stop.  But at some point, you might notice stopping takes much more pressure on the pedal than it used to.  When it gets to that point it becomes a safety issue, and you should bring your vehicle in so we can track down what’s not working correctly. Brake pedals that are stiff mean there’s something wrong with one or more components of your entire brake system.  For example, it could be moisture has contaminated your brake fluid, making it harder to push the pedal down. Many vehicles use hydraulics to amplify your pedal pressure to a force strong enough to stop your vehicle.  Certain problems can develop with your hydraulics, such as a faulty master cylinder, a kink in one of your brake lines, or a failed proportioning valve which regulates pressure to your rear brakes. Vacuum leaks can also make your brake pedal hard to push. Another cause could be a problem with your vehicle&rsquo ... read more

Engine air filters may not seem like a big deal, but when they’re clogged up with dirt, dust, and insects, your engine could wind up choking for air and not delivering you the power and performance it was designed to give. There are actually a couple of air filters in your vehicle.  One filters the air going into the cabin (the cabin air filter), and the other filters air going into the engine.  That engine filter is the one we’re talking about. After several months and long distances traveled, your engine air filter accumulates the junk it’s preventing from getting into your engine. You may notice your engine misfiring, your acceleration may not be what it used to be, it may make strange noises, and the Check Engine light may come on. When you notice any of those signs, it’s time to bring in your vehicle to have us figure out what’s going on. We’ll visually inspect your air filter.  Keep in mind that your vehicle’s manufacturer ... read more

No, ERG isn’t the sound a pirate makes.  It’s a part in your vehicle that recirculates exhaust gas to reduce certain gases and pollutants in the atmosphere.  In fact, ERG stands for “Exhaust Gas Recirculation.” One gas our vehicles may make when they burn fuel is nitric oxide, which can play a big role in creating smog and acid rain.  It’s better for our planet if our vehicles aren’t spewing that into the air.   One inventive way of reducing it is by taking the exhaust and channeling it back to the vehicle’s air intake system. When it travels through the engine again, its composition is changed, and it comes out cleaner.  It also helps the engine be more efficient. The EGR valve can fail after a while, and some signs you may notice are the engine is miss firing, it may suddenly lose power or your Check Engine light may come on.  You may also see your fuel economy decrease or hear your engine knock. A bad EGR valve ... read more

If your vehicle’s power goes to the rear wheels, then you have something called U-joints in the drivetrain. U-joints are connectors that allow the rotating power from your vehicle’s engine to deliver its power through a driveshaft to make the rear wheels rotate.  You need U-joints because the surfaces you drive on aren’t perfectly flat, and the driveshaft has to allow for some flexibility when you are traveling over uneven surfaces. As you can imagine, the U-joints have to move and flex a lot as your vehicle is going down the road.  They have bearings in them to allow that flexibility, and those bearings are lubricated when your vehicle is made.  Some U-joints have lifetime lubrication and are not designed to be serviced.  When they fail, they have to be replaced.  Others have grease fittings on them that need periodic lubricating by a technician at intervals recommended by your vehicle’s manufacturer.  There are signs you can look ... read more

While many components of your vehicle are complex and composed of lots of mechanical and electrical parts, there's one that isn't complicated but still important.  It's your engine air filter. (And, we should point out, the engine air filter isn't to be confused with the cabin air filter.  The cabin air filter cleans air that goes into the passenger compartment while the engine air filter cleans air that goes into the engine itself.) Why does your engine need a filter? Think of all the stuff–dirt, dust, and debris in the air¬–that gets kicked up on the road.  If that were to go unfiltered into your engine, it could damage other components. There are many different materials used in an engine air filter, including paper, cloth (frequently cotton), and other synthetic fabrics.  The material is usually folded tightly to maximize the filtering capability over a relatively small surface.   Before computers were employed to determine the proper mix of ... read more

It's safe to say that most drivers take their brakes for granted.  You press on the brake pedal and the vehicle slows down or stops.  It's easy to see why it is so important for your vehicle's brakes to be working correctly.  Brakes are an important safety feature of any vehicle. When it comes to your brakes working correctly, maintaining them regularly will ensure that you will always be able to slow or stop your vehicle in any situation, whether on a sunny day on dry pavement or a bad weather day on slippery surfaces.  And that is why regular brake service is such a sound investment for all drivers. The combo of brakes" and "surprises" doesn't usually end well. You might already know about some of the parts of your braking system.  Terms familiar to you might be pads, rotors, and calipers. In short, the calipers press the pads, which in turn contact the rotors.  The resulting friction slows your vehicle.  Another type of brake uses a drum and brake ... read more

Tires are so reliable these days that few drivers pay much attention to them.  But tires wear out.  They have a tough job since they are the only point of contact between your vehicle and the road.  They have to get your vehicle going from a stop, keep it going, make sure it is headed in the direction you want it to go, and –importantly – slow and stop it.   The only time many drivers think about their tires is when there's a problem, such as a flat.  Or, they may lose control when they find their vehicle isn't stopping or steering like it used to.  One major safety organization estimates that 1 out of every 11 crashes is related to a tire issue.   Many of those problems are caused by tire tread wearing out.  The rubber is worn off by friction after hours and hours on roads.  The sidewalls can also be damaged by your tires hitting curbs, potholes, or other debris. Plus, rubber ages as time passes.  We recommend you let us in ... read more