AUTONET TV

Gearing Up (Differential Fluid Service)

You may have never thought about it, but when you turn a corner, the wheels on one side of your vehicle turn at a different speed than the other side.  What is this magic? The answer is something called the differential.  

A differential is a gear box placed between the drive wheels and needs lubrication to work.  Over time, that fluid can become contaminated, reducing its effectiveness. You likely won’t be able to detect any signs that it’s happening, though it may get a little noisier over time. 

If you continue to drive with contaminated and degraded differential fluid, the gears may wear prematurely. That can also contribute to excess wear on the drive-wheel tires.   

Two-wheel drive vehicles have one differential while all-wheel and 4-wheel drive vehicles will have two or three.   Your vehicle’s manufacturer has guidelines on how often you should have the differential fluid changed, and we recommend you follow those.  

Changing the differential fluid is different depending on what model and year of vehicle you own.  Some have a drain plug so the fluid can be removed and replaced.  In others, a cover and gasket on the differential will have to be removed and replaced.  

Because differentials have constantly moving parts, they generate heat.  That’s why some have a vent to help dissipate the heat caused by friction, and sometimes that vent will need replacing.

When you bring your vehicle in for differential fluid replacement, our technician will also inspect the differential for other issues and test drive it to make sure it’s operating the way it should.  

Auto Authority LLC
804 Witzel Ave
Oshkosh, WI 54902
920-231-1016
http://www.autoauthorityoshkosh.com

10 Things That Are Lowering Your Fuel Economy

Regardless of whatever current gas prices may be, if you could use less gas, wouldn’t you? Well, here are 10 things that are robbing you of better fuel economy that you can change for the better:

   •    Not enough air in your tires.  Underinflated tires have a smaller rolling diameter and more resistance to rolling.  Keep them inflated properly, plus ask us about more fuel-efficient tires.

   •    Faulty oxygen sensor.  A faulty or dirty oxygen sensor can cause your engine to burn too rich a mixture of air and fuel.  That can also trigger a Check Engine light.  Have us check yours.

   •    Oil age and type.  Contaminated or improper viscosities of engine oil can create more resistance in your engine.  Have regular oil changes and consider newer high-mileage oils.

   •    Bad wheel alignment.  When your wheels aren’t lined up straight, they have more resistance.  Let us check your alignment and straighten things out if necessary.

   •    Aging ignition system.  When’s the last time your spark plugs, spark plug wires and coils were changed? Misfires can rob you of good mileage.

   •    Dirty fuel injectors.  They can be inefficient if they’re not clean.  Have us check yours to make sure they’re working as they should.

   •    Fouled fuel filter. After filtering impurities out of your fuel, the filter may be clogged and affect your engine’s performance.

   •    Worn out or stuck brakes. This creates drag on the wheels and prevents you from rolling freely down the road.  Have us inspect yours to see how yours are.

   •    Worn piston rings.  These form a seal in the cylinder walls so you have top compression. When the seal is sloppy, down goes your fuel pressure and mileage.

   •    Poor maintenance.  If you don’t keep your engine’s systems running efficiently, they can nibble away at your fuel economy.  

Let us help you keep your eye on each one of these so you aren’t wasting money and gas.

Auto Authority LLC
804 Witzel Ave
Oshkosh, WI 54902
920-231-1016
http://www.autoauthorityoshkosh.com

If the Shoe Fits (Brake Shoe Replacement [Rear])

When it comes to brakes on your vehicle, we all know how important it is to keep them working well because they are vital safety equipment.  After all, if you can’t slow down and stop, you can’t drive safely.  

While many vehicles use what are called disc brakes, there’s another type of brakes that are used on the rear wheels of vehicles that have something called drum brakes.  Drum brakes were the original type that were invented in the early twentieth century.  The term drum comes from the part of the brakes that is a housing connected to your wheel.  Inside there are parts called brake shoes that press against the drum when you step on the pedal, and the friction slows and stops your vehicle.  

Signs your brake shoes might need replacing are your rear brakes make noise when you step on the pedal and they vibrate when you brake.  Another sign of bad brake shoes is that your hand brake stops working.  If you notice one or both problems in your vehicle, it’s time to bring it in so a technician can inspect your brake system.  It can be unsafe to drive a vehicle with worn out brake shoes.

There are two brake shoes in each brake, and since they both work each time you stop, when they need replacing, they should be done in pairs. When we replace your brake shoes, we will also inspect other components and parts of your brake system, including your emergency brake cable.  We will also lubricate another part called the backing plate. 

Let us keep your brakes operating as they were designed to. When it comes to safe driving, stopping is as important as going.

Auto Authority LLC
804 Witzel Ave
Oshkosh, WI 54902
920-231-1016
http://www.autoauthorityoshkosh.com

Don?t Blow Your Cool (Water Pump Replacement)

It’s always a good idea to keep your cool, and that’s especially true when it comes to some components of your vehicle.  One is the engine.  It’s hot under that hood thanks to the mini explosions that are occurring in the internal combustion engine when it’s running.  Your vehicle has a cooling system which takes the heat out of the engine by moving a liquid coolant to a spot where the heat can escape (the radiator). 

The part that keeps that coolant moving is the water pump, which could probably be more accurately called the coolant pump since water is only one component of the fluid that does the cooling. If the water pump fails, your engine can overheat quickly, and that can cause significant and expensive damage to your vehicle.  Water pumps can be driven by belts (mechanical) or electricity (electric).

Your vehicle’s manufacturer recommends mileage intervals when you should consider replacing your water pump even if seems to be working fine.  That way   you are less likely to have a water pump break down at an inopportune time. Some manufacturers recommend replacing it every 60,000-100,000 miles/100,000-160,000 km.

Sometimes your water pump will fail before that, of course.  One sign something is wrong with the cooling system is if you notice the engine is overheating.  An illuminated engine temperature warning light on your dash or a temperature gauge that shows above normal are two things to look for.

You may also see steam coming out of the engine compartment, which is another sign of overheating.  Both could mean your water pump needs replacing.  We also recommend that when your vehicle’s timing belt needs to be replaced that you have the water pump replaced at the same time since everything will already be apart.

When your vehicle is already in to have the water pump replaced, it’s a good time for a technician to examine other cooling system components at the same time.  Those will include belts, pulleys, hoses, clamps as well as the radiator, thermostat and heater core.

Power Steering Pump Replacement

When you’re driving and you hear a squeal or groan when you turn, it may be a sign your power steering pump is on its last legs.  The same is true if you feel your steering is slipping or doesn’t respond to your hands like it used to.  

Precise, responsive steering is, of course, important when it comes to safe driving, so this is something you should have one of our technicians look at sooner rather than later.  

There are different types of power steering pumps, and they all perform a similar function.  They make it easier for you to turn the steering wheel with little effort as the power steering system multiplies that force so you can precisely aim a vehicle that weighs thousands of pounds.  

The type of power steering pump your vehicle has depends on the power steering system it uses.  One works by hydraulics, taking energy provided by belts driven by the engine which pressurizes power steering fluid to the wheels.  There are a lot of components in these systems, and they can wear out more quickly than some other systems.

Another power steering system works on electricity, which is more fuel efficient and produces fewer emissions.  It works on electrical power created by the vehicle’s electrical system and doesn’t put as much of a load on the engine.  With electric power steering systems, your vehicle can change how the steering feels or responds in different driving conditions.

When your power steering system isn’t working correctly, a technician will determine where the problems are.  Not only could it be the power steering pump, but there are several other parts that may be contributing to your steering issues.  That may include leaks in hoses and seals, faulty belts and corrosion in electrical components and connections. 

When you feel the steering in your vehicle doesn’t have the solid, smooth silent response it used to have, bring it in so a technician can diagnose the problems and steer you back in the right direction.

Auto Authority LLC
804 Witzel Ave
Oshkosh, WI 54902
920-231-1016
http://www.autoauthorityoshkosh.com

In the Red (Why a Vehicle Overheats)

Heat is one thing that can damage a vehicle, especially if a problem isn’t taken care of soon.  Be on the lookout for signs that it’s getting too hot in some parts of your vehicle, starting with the most obvious one: the heat gauge/warning light on your instrument panel.

When you see that heat gauge heading into the H zone or the warning light comes on, it’s often because your engine’s coolant is contaminated or running low.  It’s important to let a pro look at it soon before serious damage is done,

The radiator is another trouble spot that can cause overheating.  It has a fan that needs to run properly, and it needs to be free of debris and dirt. Another radiator trouble spot is the core.  When it gets clogged and coolant isn’t circulating as it should, an overheated engine can be the result. Have your cooling system checked regularly, including its thermostat.

Your water pump is another part of the cooling system that can wear out, and when it’s not working right, your engine can get hot quickly.  It should also be on the list of regularly checked engine components.

Finally, your vehicle has several rubber belts and hoses that play vital roles in making sure the coolant is getting where it needs to be.  It’s important to have those inspected by a technician before they fail and heat starts to build up.

Your vehicle’s cooling system is complex and critical to its operation. Plus, it must be maintained so it does what a vehicle’s engineers designed it to do.  When it comes to your vehicle, cool is cool, hot is not.  

Auto Authority LLC
804 Witzel Ave
Oshkosh, WI 54902
920-231-1016
http://www.autoauthorityoshkosh.com

Stop! And See Us (Brake Pad Replacement)

If you’ve ever driven a bicycle with hand brakes, you’ll probably understand how the brake pads on your vehicle work.  Bicycle brakes use a system that squeezes the bike wheel’s rim with a pair of cushioned pads activated by your hand squeezing the hand brakes on your handlebars. The friction of those pads stops the wheel.

That’s the same principle used for the wheels on your vehicle.  Step on the brake pedal and that causes pads to put pressure on discs in the wheels called rotors.  Those pads create friction and stop the wheels from turning.

Brake pads in vehicles are made from several different materials.  The pads most commonly used are ceramic or a combination of metals.

The friction that stops your vehicle generates heat and wears both the pads and, eventually, the rotors, too.  That means that, over time, both are going to need replacing to work properly.  One sign brake wear is getting noticeable may be  when you hear squeaking when you stop.  Or you might feel the vehicle pulling to one side during braking or the brake light on your dash illuminates.  All are signs to bring your vehicle in to us for inspection and service.

When your vehicle is in for brake pad replacement, our technician will check other components such as the brake calipers, rotors and lines.   

Brakes are something you should have inspected at regular intervals because they are a vital safety component of your vehicle.  Consider having us look at them every 10,000 miles/16,000 km or each time you bring your vehicle in for an oil change. 

Auto Authority LLC
804 Witzel Ave
Oshkosh, WI 54902
920-231-1016
http://www.autoauthorityoshkosh.com

Smooth Operator (Shock Absorbers)

When you are comfortably headed down the road, you may not realize how many of the imperfections in the driving surface are being smoothed out, so you hardly feel most of them.  You can thank your shock absorbers for a lot of that comfort, and it’s important to make sure you keep your shocks in good shape.

Newer vehicles have shock absorbers in the back wheels with another shock absorbing assembly in the front which may also have a spring component as well, called struts.  

Shock absorbers not only keep your vehicle traveling smoothly and comfortably, but they also contribute to its stability.  Increased stability will help you be able to handle sharp turns and sudden stops more easily.  Shocks also prolong the life of your tires because they’ll grip the road more tightly.  And a nice side benefit of that is your tires should last longer.  

After months hitting a lot of bumps on uneven road surfaces, eventually your shock absorbers will start to wear.  You may notice your vehicle begin to sway more when you go around a corner, and it might be more difficult to steer.  Your tires can start to wear unevenly, and the tread may show signs of cupping (flat spots).  

Other signs your shocks could need replacing is when you hit a hard bump in the road and your vehicle continues bouncing more than you remember.  Your shocks may have suffered extreme damage that can causes fluid inside to leak.  

If you notice any of these signs, head on over so we can check things out.  We also recommend you have your shocks regularly inspected so you can take care of problems before you start feeling some of those symptoms of wear.  Your vehicle’s manufacturer usually will include recommendations in your owner’s manual on how frequently you should have shocks inspected. 

Auto Authority LLC
804 Witzel Ave
Oshkosh, WI 54902
920-231-1016
http://www.autoauthorityoshkosh.com

Why is My Brake Pedal Hard to Push?

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’s brake booster or its check valve.

Because your vehicle’s braking system is made up of many different components, one of our technicians will look at several different possible causes in yours.  Your vehicle may not have enough brake fluid in it, so they’ll check the level.  A visual inspection of your hoses, brake lines and vacuum line to the brake booster may turn up the root cause of your issues.   

Because there are many different causes of a hard-to-push brake pedal, solutions may involve one or more different steps.  Keep in mind this is one problem that needs to be fixed for you to drive safely.  That’s why it’s important to have a professional track down the issue, or issues, and take care of the problem(s) so you can be back on the road, safely going and stopping.

Auto Authority LLC
804 Witzel Ave
Oshkosh, WI 54902
920-231-1016
http://www.autoauthorityoshkosh.com

No Charge (Why Won?t My Battery Hold a Charge?)

When your vehicle’s battery is dead, it leaves you with that horrible, helpless feeling.  A dead battery means it won’t hold a charge, and there are several reasons it won’t.

One is age.  Batteries have chemical and electrical systems in them that create power, and as time goes by, they won’t work well anymore.  They may have been degraded by exposure to extreme temperatures, both hot and cold. Batteries have a code on them that can tell you when they were manufactured.

Another reason your battery won’t hold a charge is corrosion on the terminals, the metal posts where your battery cables are connected.  A chemical reaction between the battery’s acid and air creates a salty moisture that can corrode those terminals.  

If your vehicle’s alternator is not working properly, it won’t charge your battery as it is designed to, and the battery may lose its charge more quickly than it should. Another possibility is there might be an electrical component that’s staying on when you turn your vehicle off, and it may slowly drain the battery so much that there won’t be enough power to start your vehicle.  

When you notice any of these things, bring your vehicle in so a technician can evaluate what’s causing the problems.  We will give your electrical system a thorough inspection and run tests that can tell the health of the battery and other components.  You may be able to avoid problems by having us evaluate your electrical system regularly as part of a periodic maintenance schedule.

Auto Authority LLC
804 Witzel Ave
Oshkosh, WI 54902
920-231-1016
http://www.autoauthorityoshkosh.com