Category: Car Care

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Go With the Flow (MAF Sensor Replacement)

A driver brought her vehicle into the shop the other day and told us how she was getting lousy fuel economy and that the engine was running rough.  Plus, the Check Engine light was on.  Our technician checked the code the engine had generated (why the Check Engine light was on) and found the problem.  It was a faulty Mass Air Flow sensor, MAF sensor for short.

This MAF sensor is an important part of your vehicle.  What it does is calculate the amount of air going into your engine.  As you may know, air is taken into your engine where it’s mixed with fuel.  Then, the spark plugs fire, that explosive fuel/air mixture detonates, and all these sequential explosions together provide the power to get your vehicle moving down the road. 

It makes sense that if the MAF sensor isn’t sending the engine’s computers the correct information on the amount of air going in the engine, the fuel/air mixture isn’t going to be right. It will either too rich (too much gasoline for the amount of air) or too lean (not enough gasoline for the amount of air).

In this driver’s case, the MAF sensor was damaged and needed to be replaced.  Another thing that may cause the MAF to give an incorrect reading is if its wires are dirty or faulty.  So, replacing or cleaning the wires important as well.

Other symptoms that your MAF sensor is bad? If your engine hesitates when you step on the gas, it stalls, or your vehicle is jerky when you accelerate. 

A malfunctioning MAF sensor is not just bad for performance.  Driving with your vehicle in that condition can cause more damage to your engine.  When you bring your vehicle in for us to check, a technician will thoroughly examine your engine to make sure all issues are taken care of.

Tylers Auto TV
12485 SW MAIN ST
TIGARD, OR 97223
(503) 639-5588
http://www.tylersautomotive.com

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I Can See Clearly (Wiper Blade Replacement)

Warm weather can bring severe storms, and when the rain is coming down hard, that’s one time you really need to be able to see as clearly as possible out your windshield.  Having wiper blades that are fit for the job are important to maintain that safe view.

Maybe you live in a climate where you use blades made for winter weather and you have haven’t changed them since the weather changed.  Those blades are made of heavier materials and don’t work as well in warmer temperatures. Blades made for warm temperatures are lighter and clear water better in the warmer months.

The general rule of thumb is you should change your blades every six months, but if you use them a lot, you might have to change them more often.  A couple of signs that your blades need changing? If you are seeing streaks on the glass or hearing a chattering sound when your wipers are working, time for a new pair.

Wiper blades have cleaning windshields on vehicles for more than 100 years.  The original designs have a multi-part frame that are better for flatter windshields.  But newer vehicle designs now have curvier windshields, so a more recent design is called a blade wiper.  It’s designed to conform better to the glass so cleans it better. 

Conventional wipers also aren’t as aerodynamic as blade wipers. Wind buffeting can reduce the pressure they apply on the rubber to the glass.  With a spoiler as part of their design, blade wipers are pressed more tightly to the glass, an advantage in clearing water from it.

Another option is hybrid blades, essentially a conventional blade with a plastic shell around the wiper’s frame that makes it more aerodynamic and, some say, gives it a more aesthetic look. 

There are lots of choices, so consult our service professionals for a recommendation on which blade fits your needs—and budget—best.  Keep your eyes on the road and keep your windshield sparkling clean, rain or shine.

Tylers Auto TV
12485 SW MAIN ST
TIGARD, OR 97223
(503) 639-5588
http://www.tylersautomotive.com

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Bad Vibrations (Brake Rotor Replacement)

If you’ve ever stepped on your brake pedal and felt your vehicle vibrate, that’s a signal that you shouldn’t ignore.  A pulsating brake pedal is a sign that something is wrong.  Braking action should be smooth, sure, and quiet, not shaky and noisy.

Most newer vehicles have disc brakes, called that because they have a round, flat disc connected to each wheel.  Those discs are the rotors. Other parts called brake pads are squeezed against those discs when you press on the brake pedal.

Remember that vibration we mentioned? That can be caused by the rotor not having a straight, true surface. Rotors can heat up from friction and warp.  They can become thinner from constant wear.  Rotors can rust from the elements they’re exposed to, such as rain, snow ice, and salt.  They can get grooves in them from so many contacts with the pads. 

The signs of worn rotors are vibrations, grooves on the rotor (which you can see sometimes through open spots in the wheel) noise such as squealing or scraping when you brake, and increased stopping distance.   

While it used to be common for rotors to be machined (shaved down to restore their flat surface), newer vehicles have thinner rotors, so your service adviser may suggest you replace rotors when they start showing signs of significant wear.

Brakes are important safety equipment for every vehicle.  They enhance your control while driving, so it’s important that they be regularly inspected and maintained.  A good time is when you have your tires rotated. A technician can then look at all components of your brakes and recommend any service you may need to keep your brakes in top shape.

Tylers Auto TV
12485 SW MAIN ST
TIGARD, OR 97223
(503) 639-5588
http://www.tylersautomotive.com

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A Head Start on Starting (Battery Testing)

If your vehicle isn’t starting or doesn’t sound like it used to when you crank it, the culprit may be the battery.  You may have left a light on, or something plugged into one of charging ports.  Maybe you accidentally left your vehicle in the “on” or “accessory” position when you last got out. Maybe you’ve left it in the garage or driveway for a long time without starting it.  That can spell the end for a vehicle battery.

It’s also possible that your battery is just simply too old. There’s no standard lifespan of a battery, but 3-5 years is about average, even though some people only get 2 and heavier duty batteries may last many more. It’s possible your battery is defective, too.  And it could be your vehicle’s charging system isn’t recharging the battery. 

Whatever the cause, if you’re having problems with your battery, it’s a good idea to bring it in and have us perform a thorough battery test.  With state-of-the-art testing equipment, a technician will see if there’s a bad cell in the battery or if it can be recharged.  We will also look at the date it was made. 

At the same time, the technician will look at the whole charging system, including the alternator, starter, cables, and connections.  From there, the service advisor can go through your options. 

Your best chance of not getting stranded by a dead battery is to have your system checked as part of a regular maintenance plan.  That should give you a head start on dependable starts.

Tylers Auto TV
12485 SW MAIN ST
TIGARD, OR 97223
(503) 639-5588
http://www.tylersautomotive.com

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Road Ready (Trip Inspection)

Maybe you’ve been cooped up for a while and are yearning for a change of scenery.  Or maybe you need to visit a relative who lives far away.  You choose not to fork out the big bucks for airline tickets, so it’s time for a road trip.  Make sure you’re road ready by having your vehicle professionally inspected before the big drive.

One of our technicians can check out several of your vehicle’s most important systems so you can be more confident that you’ll be able to go the distance without a breakdown.  Here are a few things a trip inspection may include:

Your vehicle stops with brakes that, in turn, stop the tires.  They must both be in sound condition. The technician can look at your tire tread, the condition of the sidewalls, and note the tires’ age.  Brakes have pads and rotors that should meet certain specs, so an expert inspection of their condition is important, too.

A technician can check other vital fluids such as engine coolant, power steering, transmission, and windshield washer fluid. Your wipers must be in good condition so you can see, and they’re often one of the most neglected parts of a vehicle. 

Your headlights must work correctly and be aimed properly so you can see and so that you’re not blinding oncoming drivers. They’re powered by your battery, and a technician will check how old yours is and how well it holds a charge, all important for reliable starting. 

For cabin comfort, your climate control system needs to work correctly, which means both heat and air conditioning.  If things need to be repaired – before the trip will be a lot more convenient than trying to do it while you’re traveling.

The technician can inspect hoses and belts, two things that frequently fail on a long trip.  And the big advantage of having a pro look over your vehicle is that they not only know what to look for but also can make the repairs the right way.  Now that’s the ticket to being road ready.

Tylers Auto TV
12485 SW MAIN ST
TIGARD, OR 97223
(503) 639-5588
http://www.tylersautomotive.com

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The Little Valve that Could (PCV Valve Replacement)

It’s easy to get letters like PVC and PCV mixed up.  PVC is a plastic that’s used in a lot of things, especially plumbing pipes.  And PCV is a valve that helps your engine burn off excess fumes rather than having them pollute our atmosphere. 

PCV stands for positive crankcase ventilation.  When your engine ignites gasoline in the cylinders, some of the gases produced make their way into the crankcase, where oil is held to lubricate the engine.  In earlier days, those gases would be vented out through a hose and go directly into the air.  It was a waste of gasoline (since about three-fourths of the gases were unburned fuel) and a nasty source of pollution.

So engineers devised a one-way valve that directed those gases back into the engine’s air intake system to be burned again.  After a while, the PCV valve can get clogged up with gummy oil.  Not only does that reduce the recirculation of the gases, but it can also cause pressure in the crankcase to increase and possibly lead to an oil leak.

Signs your PCV valve has failed are oil leaks around the engine compartment or under your vehicle and poor engine performance. Your fuel economy will get worse. If you notice those signs, we can check your PCV valve. 

At the same time a technician inspects the PCV valve, they’ll also check the vacuum hose that runs back to the air intake.  Plus, they’ll make sure the vehicle doesn’t have any other engine problems that might be contributing to your issues. 

Many technicians recommend replacing your PCV valve with each major tune-up, so you get ahead of any problems before they develop.  Now that you’re an expert on PCV, it may be time to check out those PVC pipes in your bathroom!

Tylers Auto TV
12485 SW MAIN ST
TIGARD, OR 97223
(503) 639-5588
http://www.tylersautomotive.com

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Shifty Letters PRNDL (Transmission)

You probably figured out those shifty letters.  They’re what you see on your automatic transmission shifter and stand for Park, Reverse, Neutral, Drive and Low.  Your automatic transmission is one of the great automotive inventions; here are some ways you can keep yours working well.

Maintain your transmission regularly.  A technician will check your transmission fluid’s level and even its appearance and smell.  If it’s dark or has an unusual odor, that could be a sign of trouble.

Change from one transmission direction gear into another only when your vehicle is stopped.  So many drivers want to switch from Reverse to Drive quickly or the other way around.  If you do that when the vehicle is moving, you can damage your automatic transmission.

Keep your vehicle’s cooling system in top shape.  What does the cooling system have to do with the transmission? It helps keep the transmission fluid from overheating. 

Follow the manufacturer’s recommendations for maintaining your transmission.  Some recommend at least an annual checkup by a trained technician. 

Let your powertrain warm up a little before overtaxing it. Especially in cold weather, don’t step on the throttle too aggressively before all components are warmed up.  That way both your engine and transmission will last longer.

Transmissions can be costly to fix.  If you treat your powertrain with respect and regularly maintain it, you’ll not only avoid expensive repairs, but you’re also much less likely to find yourself stranded because of a transmission problem. 

Tylers Auto TV
12485 SW MAIN ST
TIGARD, OR 97223
(503) 639-5588
http://www.tylersautomotive.com

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Breathe Easier (Cabin Air Filter)

When you get in your vehicle, how does it smell? If it’s not so nice, it may be time to have your cabin air filter changed.

It’s not the same one that filters out the air used in the engine.  The cabin air filter screens out dust and other particulates from the outside air so when it enters the cabin, you don’t have to breathe them in when you’re driving.  Maybe your commute finds you traveling along dusty rural roads, or maybe you pass by some city factories that have smokestacks spewing out smoky exhausts.  Or in spring, maybe you notice your allergies acting up because of the pollen in the air.  The cabin air filter will remove a lot of those things.

The more it filters out, the more those small particles add up.  That reduces how much airflow the heating/air conditioning system can handle, and you may notice not as much air is coming through your vehicle’s vents.  That can also be a sign you need your air filter replaced.

Our technicians will remove and inspect the air filter; it’s usually located around the glove compartment, under the dash or sometimes in the engine compartment. If you wish, your service advisor can show you what condition yours is in; if it needs replacing, you’ll be able to see the dirt, bugs, leaves and other crud that accumulates after several months of driving. 

Each vehicle’s manufacturer recommends an interval after which your cabin air filter should be replaced. Depending on how much and where you drive, you might find yourself needing a replacement more or less often than the manual suggests.

Just like you clean your furnace filters periodically, it’s wise to do the same with your vehicle.  After you do, you’ll find you might just breathe easier!

Tylers Auto TV
12485 SW MAIN ST
TIGARD, OR 97223
(503) 639-5588
http://www.tylersautomotive.com

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Plugging Away (Spark Plug Replacement)

If you drive a vehicle with a gasoline engine, thank the spark plugs for igniting the gasoline/air mixture in each cylinder that keeps your vehicle traveling smoothly down the road every day.  Your spark plugs work hard, firing thousands of times in a well-choreographed order, and you usually don’t pay much attention to them until one of them stops working the way it should.

Signs that spark plugs are wearing out include:

  • Engine runs more roughly than it did
  • Vehicle doesn’t start as easily as it used to
  • Vehicle hesitates when you press on the accelerator
  • Your fuel economy has gotten worse

When a spark plug stops working altogether, you will find your engine has likely lost a lot of its power and isn’t running smoothly.  Your Check Engine light may  come on.  Then it’s time to head to come to our service center to have it diagnosed.

If your plugs need to be replaced, they’re usually done all at the same time. And if your vehicle has spark plug wires, experts recommend you change them as well. Different type of spark plugs last longer than others, and your service advisor can discuss what’s best for your vehicle and driving habits.

A technician will also determine if there are any carbon deposits on your plugs, how healthy the ignition coil is (it’s the part that supplies the high-voltage jolt that makes the spark) and will look for other signs and symptoms that may point to other problems in your engine. For instance, if a spark plug is fouled by oily deposits, it’s possible oil is getting into the combustion chamber. 

They will also check all the plugs to see if there are problems in just one or all cylinders.  Sometimes a technician will find a plug that has overheated, literally melting the metal.  In that case, they may recommend they correct that problem before replacing the spark plugs.

Most spark plugs will last for a good, long time.  Even if you aren’t seeing any symptoms they’re wearing out, make sure you have your service advisor check your vehicle manufacturer’s recommended maintenance intervals.  Preventative maintenance will keep your vehicle running reliably so you can count on it to get you where you want to go. 

Tylers Auto TV
12485 SW MAIN ST
TIGARD, OR 97223
(503) 639-5588
http://www.tylersautomotive.com

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Steering You Right (Power Steering Signs of Problems)

Nearly every modern vehicle on the road today has power steering, a wonderful invention that makes steering take far less effort than it did in the “good old days.”  Today, we take our steering for granted: until something goes wrong, that is.

Most power steering these days is rack-and-pinion, the rack being a metal bar between the front wheels with notches in it and the pinion being a gear whose teeth fits into those notches.  Adding power assist makes it easy to turn. That assist comes in the form of hydraulic fluid that is pressurized by a pump powered by the engine, an electric motor that adds a power assist or a system that uses both an electric motor and hydraulic fluid.

Your vehicle usually gives you a heads up that something is going wrong with its steering. Here are a few signs to look for:

  • A humming, whirring, rubbing or grinding sound coming from you engine compartment when you turn.
  • Signs of hydraulic fluid leaking, such as wet spots under your vehicle.
  • The smell of burning oil while you’re driving.
  • Steering wheel hard to turn or vibrating.

If you notice any of these signs, it’s a good idea to have a trained technician check them out.  They may be signs of:

  • Power steering pump going bad
  • Steering rack or gear seals wearing out, causing them to lose hydraulic fluid
  • Broken fluid hose
  • Defective power steering cooler
  • Loss of pressure in the power steering gearbox
  • Worn out steering pump belt
  • Failing electric power steering motor

It’s important to have these checked out sooner rather than later. You need to be able to steer properly in order to drive safely. Plus, some of these problems can cause more serious—and expensive—damage if they’re not fixed.  Power steering is a wonderful feature of your vehicle.  Keep it well maintained and it will steer you right.

Tylers Auto TV
12485 SW MAIN ST
TIGARD, OR 97223
(503) 639-5588
http://www.tylersautomotive.com