AUTONET TV

Restore Your Get-Up-and-Go (Fuel and Air Induction Cleaning)

You may have heard the old saying, "My get-up-and-go got up and went." If your vehicle's engine's fuel economy is noticeably worse, your engine is idling roughly or stalling or your vehicle's acceleration isn't what it used to be, ask your service advisor if you might need your vehicle's fuel and air induction systems cleaned.

As the hours pile up on your engine, carbon deposits can build up.  It's not unusual for some of the impurities and additives in fuel to leave behind a black residue that eventually will negatively affect your fuel economy and performance. Maybe you're noticing your engine is harder to start, you hear knocking or pinging in your engine and your vehicle just doesn't have the pep it used to.

While it's a sophisticated process with a lot of components, a gasoline engine essentially produces power by drawing in air from the outside and mixing it with fuel in the cylinders where this blend of fuel and air is ignited by spark plugs in synchronized explosions.

The fuel and air enter your engine through the fuel induction system and air induction system. Because of things like high operating temperatures and impurities, carbon in the fuel can leave behind dark, sooty deposits in the fuel induction system such as the fuel injectors and the throttle body. These and other residue reduce your engine's efficiency and performance. Our service center can use special fuel injector cleaners to remove those deposits from your engine.

The technician may manually clean some of the deposits and also put a fuel additive in the fuel tank that will get rid of other deposits that are still in the fuel system

Keeping the air induction system clean is also important.  A technician can use a liquid cleaner specially designed for the job. Not only can this improve your fuel economy, it may also reduce exhaust emissions and help your engine last longer.

Most gasoline now contains detergents that help reduce or prevent these problems, but direct injection is now being used in more vehicles that are more susceptible to clogging. Ask your service advisor if your vehicle could benefit from fuel and air induction cleaning. 

Hill's Auto Repair, Inc.
22829 colton point rd
Bushwood, Maryland 20618
301-769-2400

Read a Good Tire Lately? (Tire Wear)

There's lots of good information to read in books and online.  You might not know that you can also "read" your tires and learn a lot about what shape they're in and if they are in need of attention. It's important to know how your tires are doing because a tire failure can be very dangerous to you, your passengers and others on the road near you.

You read your tire by looking at the surface that rides on the road, where the tread is.  Check out the outer and inner edges.  If you notice there's more wear on the inner or outer edge than on the rest of the tread, your vehicle could be out of alignment.  Wear on an inner or outer edge could mean your wheels are leaning too much to one side.  When you see this, visit our service center soon to have the alignment checked.

What about if both edges are worn? That could be a sign that you don't have enough air in that tire.  In an underinflated tire, the middle is not contacting the road surface as much as the edges, so the edges wear down first.  It could also mean that you're taking corners too aggressively or your tires haven't been rotated on a regular schedule.

Another thing you might see on your tires' tread area is wear in the center of the tire.  That means you likely have too much air in that tire.  Too much air makes your tire contact the road in the middle more than on the edges so the middle wears down prematurely. 

You might also see some smooth spots on the tread in irregular spots. This is called cupping. This is sometimes caused by suspension problems. A technician can examine your suspension to see if it is up to the manufacturer's specifications.

Finally, you may spot tires that are worn unevenly in a pattern that goes diagonal to the tread pattern.  This could mean your tires are out of balance, something our service center can check. They might also check alignment at the same time.

Your tires are the only part of your vehicle that contacts the road surface.  That means your acceleration, traction, steering and braking are all dependent on your tires being healthy. Maintain your tires by having one of our trained technicians read the clues and making sure they're always in roadworthy shape. 

Hill's Auto Repair, Inc.
22829 colton point rd
Bushwood, Maryland 20618
301-769-2400

All Lined Up (Alignment Inspection)

When you head down a straight road, does your vehicle pull to one side?  Do you feel vibration in any of the wheels? If you've noticed any of these things, it's probably time for you to get your wheel alignment checked.

When your vehicle left the factory, its wheels were parallel to each other and perpendicular to the ground.  That maximizes traction for good steering and braking. Every time you take your vehicle on the road, normal wear and tear will affect your alignment. Hit a bump, a pothole or a curb and all those little knocks will add up

Bad alignment not only can cause your steering wheel to pull unevenly, it can also wear your tires out a lot faster than they should. In fact, if you look at your tires and see one side of the tread is a lot smoother than the other, it could be another sign of bad alignment.

Since different problems can cause similar symptoms, the first thing our trained technician will do is test drive your vehicle. Then, they'll check the front end and steering linkage as well as look for tire wear.  Then, the technician will put your vehicle on a lift and use computerized diagnostic equipment to measure alignment angles so they can precisely align your vehicle's components.

There are different kinds of alignments.  One is a front-end alignment that aligns components of the vehicle's front axle.  Another is a thrust alignment that makes sure the front wheels are lined up with the direction the rear wheels are pointed.  A third type is four-wheel alignment which is usually used on all-wheel drive and  4-wheel drive vehicles.  It's also recommended for front-wheel drive vehicles that have independent rear suspensions.  It makes sure the angles of all the wheels are where they should be relative to each other and also the vehicle's body or frame.

Your steering wheel should be perfectly centered if you are heading straight down the road, so the technician will adjust it so it is. Finally, they'll take your vehicle back on the road for a final test drive to make sure it's performing the way engineers intended.

Your service adviser can recommend how often you should have your alignment inspection, since it depends on the type of vehicle you drive (SUV, sporty car, etc.) and your driving environment.  Properly aligned wheels can help your vehicle perform better and save you from expensive repairs down the road.

Hill's Auto Repair, Inc.
22829 colton point rd
Bushwood, Maryland 20618
301-769-2400

Giving CV Joints the Boot! (CV Joint and Boot Replacement)

Ever wonder how your vehicle’s transmission is connected to your wheels? After all, when you hit a pothole or some other uneven part of a road’s surface, there has to be something that can maintain the connection between the transmission and the wheel yet keep everything moving at the same speed. 

That very cool device is called a CV joint, a kind of driveshaft running to each wheel.  The CV stands for constant velocity because it keeps the drive wheels moving at a constant speed (velocity).  They’re used mostly on front-wheel drive vehicles but also in rear-wheel and all-wheel drive vehicles.

The joints move up and down and adjust to bumpy surfaces.  Plus, they are covered in a rubber boot which protects them from road debris and also holds lubrication in.  There’s a CV joint and boot on the transmission side and one on the wheel side.  Unfortunately, the spot that usually fails first is that rubber protective cover (the boot).  After a lot of wear, tear, bumps, road hazards, heat, and you name it, the rubber rips and the lubrication leaks out.  At that point, it must be replaced. 

Here are signs to tell if your CV joint is bad.

• Your vehicle is pulling to one side as a wheel loses power or you feel a vibration while driving.
• You see grease on the inside or edge of your tires.  
• Your front tires won’t point in the same direction.
• You hear grinding or clicking when you turn.

Sometimes if a broken boot early is caught early, a technician can pack in new grease and replace just the boot.  But if the lubrication has leaked out and the joint is already wearing badly, the CV and boot both have to be replaced.  Give your vehicle the boot (as in a new boot) and CV joint, and you’ll be back on the road to your next destination.

Hill's Auto Repair, Inc.
22829 colton point rd
Bushwood, Maryland 20618
301-769-2400