Chesapeake Auto Repair

You know you have an accelerator pedal; step on it and your vehicle is supposed to go.  But did you know there is a part in your vehicle that keeps track of where the throttle is? It's called the Throttle Position Sensor, or TPS.

The TPS is a sensor that helps your vehicle figure out the right mix of air and fuel is reaching your engine.  It does that by keeping track of the throttle and sending that information to your vehicle's computer.  Other factors play a role in how well your engine is performing, including air temperature, how fast the engine is turning over and air flow. 

When the TPS isn't working right, you may find your vehicle won't accelerate or doesn't have the power you're expecting when you press on the accelerator.  In some cases, it may accelerate on its own.  Sometimes your vehicle won't go over a certain speed.  Your Check Engine light may go on.

Any of these symptoms should be checked out soon.  If your TPS stops working right, your vehicle may not be safe to drive.  Fortunately, most vehicles have a "limp home" mode that will allow you to get off a busy road to a safe spot. 

Your service advisor can let you know which TPS is the correct replacement for your vehicle.  Your shop may have to re-program the new TPS so it works correctly with other software in your vehicle.

It's a fact of life these days that computers control many of a vehicle's functions. The sensors that feed information to those computers help make your vehicle work the way it was engineered to and keep you motoring down the road safely and efficiently.

West Service Center
904 Cavalier Blvd
Chesapeake, Virginia 23323
757-487-4420
http://westservicecenter.com

It's pretty frustrating when your driver's window won't work.  You can't get your food at the drive-thru without opening the door, have a tough time using the ATM from your vehicle, can't have that fresh breeze blowing through your hair as you listen to your favorite road tunes.

Plus, there's a safety factor.  Your windows provide an escape route in case you need to get out and the doors won't work.  Let's take a look at what's going on when your window won't operate.

Most vehicles these days have power windows.  They have an electric motor in each power window and sometimes those fail.  They often give you a warning that they're on their last legs by making a noise or hesitating, so if you get a sign like that, have a technician check it out. Loss of power can also be due to a blown fuse, a bad switch or faulty wiring.

All windows have something called a regulator that moves the glass up and down.  They have a lot of moving parts in them which can break, become bent, rust or get out of alignment. The glass moves along a window track guide.  Sometimes if the glass gets out of the track, it won't move up and down the way it's designed to do.

When you take your vehicle over to a repair facility, a technician can pinpoint the cause of your malfunctioning window.  Often it involves having to remove the door panel to gain access to the components inside.  But when everything's working right, you'll be able to throw that annoying inconvenience right out the window.

West Service Center
904 Cavalier Blvd
Chesapeake, Virginia 23323
757-487-4420
http://westservicecenter.com

Know anyone who doesn't love a power seat in an SUV, a car, truck or van? They're convenient and precise in their adjustments.  But when they break, oh, what a pain.  Not only is it inconvenient, it may leave your seat position too close to the steering wheel or too far from the pedals.  This is a must-fix problem.

There are many things that cause a power seat to fail:

• Seat controls.  These are either at the side of the seat or in the door.  Both are places that can be exposed to moisture or other contaminants.  When the controls stop working, they usually need to be replaced.
• Seat motor.  Electric motors are what make a power seat move, and sometimes they fail.  Sometimes they just get worked to death and die of old age.  Replacement is the most common remedy.
• Fuses. A power seat is, after all, powered by electricity and all vehicle power systems have fuses to protect them.  A technician can determine which fuse may have blown and replace it.  But it's also important to figure out what caused the fuse to blow and deal with that, too.
• Wires.  There are wires under the seats that move when you move the seat.  Sometimes they get stretched, kinked or ripped.  In a power seat malfunction, it may be a wiring harness that needs to be replaced.
• Gears.  They help the seat move and may need to be realigned or replaced.
• Obstructions.  Yes, a piece of trash or a kid's toy has been known to jam up the works of a power seat. Taking them out of the mechanism may get your seat working again.

Most people pay extra to have power seats in a vehicle. So make sure you keep that convenient feature working. And don't forget that it's a safety issue, too.

West Service Center
904 Cavalier Blvd
Chesapeake, Virginia 23323
757-487-4420
http://westservicecenter.com

If someone asked you what gas made up the largest portion of the atmosphere, what would you guess? Well, it's not oxygen; it only makes up 20.9 percent.  But since we're talking about oxygen, you should know that your vehicle uses oxygen sensors to make sure your engine is running the way it should.

The oxygen sensors measure how much oxygen is in your exhaust.  If there's too much, it means there's a problem with the mixture of fuel and air.  The sensor sends signals to computers in your engine and adjusts the mixture so it maximizes performance and efficiency.  It does this constantly. 

Many vehicles have multiple oxygen sensors.  Some have one close to the engine, another close to the muffler.  Two measurements are better than one since they allow readings to be more accurate.  You may have a vehicle with a dual exhaust, so you'd have twice as many oxygen sensors.

Your oxygen sensors can fail.  One thing that can damage them is contamination from bad fuel.  The sensors can simply wear out, though they usually last a long time.  It's not unusual for an oxygen sensor to last 100,000 miles/160,000 km. One more thing that can cause an oxygen sensor to fail is residue from an engine that's burning oil.  Plus contaminants from the road like salt can also cause problems. 

Here are some signs that your oxygen sensors might be failing.

• The Check Engine light goes on.  In this case, your service facility can plug in a device that will read the code in your engine's computer to see if that's the problem.
• The engine is running roughly.
• Black, sooty smoke is coming out of your tailpipe.
• Your fuel economy is noticeably lower than it used to be.

Head to your service facility and tell your advisor what symptoms your vehicle is experiencing.  They have the equipment and training to track down the issue.  Note that simply replacing the oxygen sensor is often not enough since it doesn't get to the root of the problem; other repairs may be needed. 

So make sure your oxygen sensors are working the way they should be.  Oh, and back to the question of what gas makes up most of the Earth's air?  It's nitrogen, which comprises 78 percent of the air we—and our engines—breathe.

West Service Center
904 Cavalier Blvd
Chesapeake, Virginia 23323
757-487-4420
http://westservicecenter.com

Driving along, your exhaust system's rumbling so loud that people turn and stare at you pass by.  You're wondering when the police are going to pull you over for illegal noise.

Your mind immediately thinks, aha! A broken muffler. 

Well, your exhaust system is composed of many more parts than just a muffler. 

Your engine makes power because of thousands of tiny explosions from detonating fuel.  Those explosions make a racket, so engineers came up with a system that acoustically dampens that sound in addition to getting rid of harmful exhaust.

In the engine is the exhaust manifold that looks like several pipes that join up into one pipe.  It directs exhaust to the catalytic converter. The catalytic converter converts harmful gases into less harmful gases using certain chemical reactions.  Then comes the muffler that has baffles inside to quiet the sounds of your engine noise.  Finally: the tailpipe.

All of those pipes and parts are joined together by clamps and held up by brackets, and they ride over some pretty bumpy roads.  They are also exposed to the elements, like salt, water, rocks and grit.  Chances are that one of those clamps or brackets has been weakened by corrosion.  When you hit a bump, bingo! The crack widens into a gap and there's a spot for the engine noise to come roaring out instead of being directed into the muffler's quieting chambers.

You might be surprised to know that the exhaust system can rust from inside out.  How? Moisture is one component of exhaust, and moisture on the inside can do the same kind of damage as moisture from the outside. 

It's a good idea to have your exhaust system looked at regularly by a technician.  He or she can evaluate the condition of the metal and recommend when it might be time to replace parts before they break.

Then you'll have a decision to make.  Newer exhaust systems are made out of stainless steel that is much less prone to corrosion issues.  Others are made of aluminized steel that also fights rust.  You've probably already guessed that they can cost more, but the extra price up front may give you an exhaust system that will last much longer. 

Sure, with a repaired exhaust system, you won't have quite the head-turning vehicle you once had.  You'll just have to live with all the quiet.

West Service Center
904 Cavalier Blvd
Chesapeake, Virginia 23323
757-487-4420
http://westservicecenter.com

Some drivers don't pay any attention to their vehicles until something breaks.  Others take them into their service repair facility for maintenance even before a problem develops.  Still, even if you fit into the second group, there are some parts on a vehicle that will simply wear out over time.

Your vehicle has gaskets in several places.  They use a flexible material to seal the gaps between metal parts that fit together. After time, that material shrinks or gets brittle and fails.  Eventually, after time, you will have to get gaskets replaced.

Same goes for belts.  Your engine has belts that help take the mechanical energy of the engine to drive other parts such as the generator and air conditioner.  Heat and age will eventually cause these belts to wear out or break, so you'll need new ones at some point.

You'll also find yourself buying brake pads.  As much as you may try to go easy on them, brake pads work by wearing off a little bit of them each time they help you stop your vehicle.  Do a lot of stop-and-go driving and you'll hasten the process.

No battery lasts forever, and your vehicle's battery is no exception.  It can only charge and discharge electricity so many times.  Count on getting no more than 4 or 5 years out of a battery, fewer if you live in a very hot spot.

Other parts that don't age well? Tires.  They can have plenty of tread left on them, but rubber gets old and loses its flexibility. Tires have their date of manufacturer stamped on them for a reason.

Finally, your muffler is being subject to moisture from inside and out: inside because of moisture-containing exhaust and outside from the elements outdoors. Stainless steel or other alloys will last longer, but after a while, either the moisture or constant pounding from vibrations will take their toll.

That's why it's important to maintain every part on your vehicle. You can't wave a magic wand and make everything last forever, but take care of your vehicle and it'll take care of you.

West Service Center
904 Cavalier Blvd
Chesapeake, Virginia 23323
757-487-4420
http://westservicecenter.com

Your vehicle's air conditioning is something you count on when the weather heats up.  But there's bound to be a day when you turn it on and one of these things happens:

• Only warm air blows out
• Cold air starts blowing out but then it turns warm on its own
• It's not blowing air at all
• It blows smelly air out

Some people are tempted to try to make the diagnosis—and the repair—on their own.  They think it's just run out of refrigerant and they can pick up a can at a local auto parts store and re-charge it.   If only it was that easy.

A vehicle's air conditioning system is complex and made up of many parts.  A compressor, evaporator, condenser, tubing, hoses, sensors, valves… the list goes on and on.

Each of these components could be the reason for the problem.  It could be a leak that's letting the refrigerant escape, but simply re-charging the system hasn't fixed the problem. You have to find the source of the leak and fix it. Service facilities have a device called a "sniffer" which can sniff out refrigerant chemicals. And they can use black light to locate refrigerant that has an ultraviolet dye in it. 

But often other components wear out; blower motors go bad, resistors blow, tubes clog, compressors fail. And diagnosing that takes training and special equipment you'll find at your service facility.

One other thing to keep in mind.  It's always better to catch any problems in the air conditioning system before it fails. Ask your service advisor about having

the A/C checked as part of the vehicle's maintenance.  That's the cool way to go. 

West Service Center
904 Cavalier Blvd
Chesapeake, Virginia 23323
757-487-4420
http://westservicecenter.com

As the weather changes over from hot to colder, drivers will have to deal with more slippery streets.  And it's important to know how to drive with the brakes you have on your vehicle. 

In the 1970s, anti-lock braking systems (ABS) started to be installed on vehicles and they've been a game changer for drivers.  Most modern vehicles have ABS and it's important to know how to drive with them.

In older vehicles without ABS, the driver applies the brakes by pushing down the pedal.  That, in turn, sends braking pressure to all four wheels at once.  But all four tires don't have the same traction because the road surface they're each on isn't exactly the same.

ABS allows sensors to determine when particular wheels are slowing down more quickly.  The ABS then reduces braking pressure to the wheels that are about to lock up.  That way the wheel turns and the tires keep some grip. (You have to have grip to stop.) It's kind of what drivers try to achieve when they pump the older-style brakes without ABS.

Another engineered feature of ABS is that it makes sure your front wheels will continue to rotate and maintain some traction.  That's important because the front wheels are used to steer, and being able to steer gives a driver more control in a quickly-changing situation.  So ABS is all about stopping as fast as the road surface will allow but at the same time enabling the driver to maintain control. 

ABS is designed for the driver to put steady pressure on the brake pedal and let the vehicle’s computerized system handle the braking.  Pumping the pedal in a vehicle with ABS can defeat what the system is trying to do to help you maintain control.

Because stopping techniques in a vehicle with ABS are different than those without, it’s important to know which brakes you have so you can operate them accordingly. 

If you have any doubt, consult your service advisor.  ABS involves sophisticated technology and must be maintained in order for it to work properly.  Your service advisor can recommend a maintenance schedule for you to follow so your ABS is always on the ready to help you stop when you need to.

West Service Center
904 Cavalier Blvd
Chesapeake, Virginia 23323
757-487-4420
http://westservicecenter.com

You notice when your smartphone's battery starts to go weak on you.  It runs out of juice faster than it did when it was new.  Bet you pay attention to that pretty closely.

Unfortunately, many of us don't pay the same attention to the battery in our vehicles. If your battery got you through the cold-weather months, you might be thinking you're all set until next winter. But you might be surprised to learn this: Hot weather is harder on a battery than cold weather.  (Note: we're talking about a conventional vehicle here, not an all-electric, plug-in one.)

 The way your vehicle's battery holds a charge is that it has chemicals inside it, and they react with each other to produce electricity.  A vehicle battery discharges electricity and then needs to be recharged.  Unlike your smartphone that you plug in each night to charge, the way a vehicle's battery gets recharged is by using the mechanical energy of the engine.  It's a pretty cool system that's been around for a while.  An alternator changes the mechanical energy into electricity that then charges the battery.  And your vehicle is designed to charge it just the right amount with a voltage regulator. If your battery constantly gets too much voltage, it could stop holding a charge. 

Another way a vehicle battery loses its ability to hold a charge is when it gets hot.  In warmer weather, some fluids in your battery evaporate which can damage some of its internal components.  Then, you've got a dead battery.

Back to your smartphone for a second, it probably has a little indicator or maybe an app that shows you how healthy it is or how much charge it's holding.  Well, your service repair facility has equipment that can test your vehicle's battery for the same things.  If that test shows you need a new battery, then it's probably time to replace it.

A technician can also check to see your battery is being charged at the correct rate.  If you have a battery that is not sealed, a technician can check to see it needs more water added to it.  The technician will also make sure dirt or other contaminants aren't acting as electrical conductors and discharging the battery.  Plus, your battery's terminals may need cleaning.

Most people just forget about their vehicle's battery until there's a big problem with it. Here's one rule of thumb: expect a battery's life to be about 5 years. Just like you wouldn't want your smartphone to leave you without any way to make phone calls or send texts, you wouldn't want your vehicle to leave you stranded with no way to start it, would you?   

When it comes time to make that new battery choice, your service advisor can offer you some good options, taking into account the climate you drive in, what you use your vehicle for and what your budget is.  Hey, your smartphone's battery is all charged up.  How about calling your service advisor for an appointment right now?

Ever wonder why it costs so much more to fix a similar problem in two different vehicles? Let's say you now own an SUV and before that, you owned a car.  Your SUV's air conditioning system needs a new evaporator, but the cost for the new one is way more than you remember it was for your car.  How can there be that big of a difference?

There are many reasons.  For one thing, vehicles aren't all the same.  Yes, they have engines and steering wheels and suspensions, but engineering and design can vary widely among different styles and brands. 

In the case of replacing the evaporator, the one in your former car may have been located in a spot where the technician could get to it easily.  Plus, the part may have been less complicated and, therefore, cheaper.  Your SUV may require the entire dashboard to be removed with special tools to detach the a/c lines from the evaporator.  Plus, since it is supplying cool air to a bigger cabin, it may be more complicated; the part itself may cost quite a bit more.

But you're not an expert, so how do you know the price is fair? This is where it helps to establish a good, long-lasting relationship with a reputable service repair facility.  They know you, they know your vehicle and they value keeping you as a customer. A facility that doesn't care about repeat business may try to suggest more repairs than are needed or inflate their prices.  But those shops are unlikely to stay in business very long since their reputation gets around. 

If you've been taking your vehicles to the same shop for several years, you've had experience with them and know their policy on labor costs and parts prices.  At some point you may wonder if it's worth it to keep putting money into your vehicle, and if you know your service advisor, you have developed a trust for his or her advice. 

Keep this in mind, too.  Vehicle designers and engineers have made significant progress in things like powertrain technology and rust prevention.  That means today's vehicles are meant to last longer.  One study in a major consumer magazine shows that if you can keep your vehicle on the road for 200,000 miles/320,000 km, an average of 15 years, some vehicles can save you up to $30,000 or more. Investing in repairs can make a lot of sense. 

West Service Center
904 Cavalier Blvd
Chesapeake, Virginia 23323
757-487-4420
http://westservicecenter.com