What is the benefit to cleaning an engine

unduhan-6A clean engine compartment makes a used car look newer and better maintained. Some shops that perform engine cleaning services claim a clean engine even runs a little cooler because the gunk formed by dirt, oil and grease seals in some heat.

Appearances aside, does an engine that sparkles like new run any better than one that’s grimy from normal use? Probably not.

Though it is true that oily, greasy dirt that accumulates on an engine can trap some heat, it’s doubtful it would be enough to cause an engine to overheat or even run hotter than normal. If an engine overheats, the probable cause is more likely in the cooling system, or because the vehicle is towing or carrying too much weight or some other issue unrelated to the cleanliness of the engine bay.

However, there are benefits to cleaning a dirty engine. First, it can help determine where oil or grease is coming from, such as a leaky valve-cover gasket, so that a small problem can be isolated and repaired before it becomes a big one. In addition, because oil and grease can accelerate the wear of rubber hoses and plastic parts, cleaning off the gunk may save on repairs. And if you’re the type who likes to do some minor maintenance, such as checking the oil level or accessory belts, a clean engine means your hands and clothes are less likely to get dirty.

Many mechanics and detail shops recommend using a degreaser and tools such as a vacuum with a small nozzle, compressed air or a toothbrush to get at hard-to-reach spots. Those are preferable to blasting an engine with a high-pressure hose or steam cleaning an engine, because moisture can damage electrical parts.

The cosmetic appeal of a clean engine will probably be the biggest payback. Most used cars are thoroughly detailed before being put up for sale, including many sold by private owners, so buyers have come to expect to see a clean engine when they shop. A dirty engine on a used car will hurt its curb appeal.

How to choose the great gas for your car

unduhan-7The only guaranteed result of using premium gas in an engine designed for regular is that you will spend more money. As far as any tangible benefits, the chances are slim to none.

If your engine runs fine on regular, filling it with premium is unlikely to boost acceleration or fuel economy by more than insignificant amounts. No matter what you’ve heard, premium won’t do more to clean deposits from your fuel injectors or other parts of the fuel system because today’s regular gas contains the same detergent additives.

The main difference with premium is its higher-octane rating, 91 or higher compared with 87 for regular. The higher octane gives premium gas greater resistance to early fuel ignition, which can result in potential damage, sometimes accompanied by audible engine knocking or pinging. Higher octane allows engines to have higher compression ratios (for a more energetic explosion), more advanced ignition timing or forced-air induction like turbochargers or superchargers. They perform best when fed premium gas.

But if the vehicle manufacturer says your engine needs only 87-octane regular, that is what you should use. The higher octane of premium gas won’t make your car faster. The opposite is possible, because higher-octane gasoline technically has less energy than lower-octane; it’s the fuel’s ability to be compressed more without pre-igniting that results in more power when used in the appropriate engine. Premium gas is not “stronger.”

If you burn premium because you think it makes the engine peppier, that is probably psychological: I’m paying more, so I must be getting more. Some motorists claim they get better fuel economy with premium, but some of that could be due to favorable weather conditions (such as warm weather instead of cold) or other factors.

If you use premium because your engine knocks on regular, you are treating the symptom, not the cause. Something else might be causing the knock, such as carbon deposits or hot spots that should be diagnosed and treated by a mechanic.

Premium gas can cost 20 to 60 cents more per gallon, depending on where you live. Paying more to pump premium into a car designed for regular will have a low return on investment.

The Improtant of Drive Belt

images-4The drive belt is a reinforced rubber belt that allows the engine’s rotating crankshaft to drive components such as water pumps, alternators, air-conditioning compressors, power-steering pumps or superchargers. Your car may use separate belts for one or more components or hit multiple pulleys with a snaking serpentine belt. Belts are relatively inexpensive items that are best replaced when worn, damaged or simply old rather than after they fail. Serpentine belts in particular, because they power so many components, disable the car completely when they break.

How do I know if my drive belt is bad?
The accessory drive belt (also called a V, or serpentine, belt) drives the air-conditioning compressor, alternator and, on many vehicles, the power steering pump and water pump. If this belt breaks, none of those systems will work. If the belt is cracked, frayed or badly worn, it can slip on the pulleys it rides on, and the accessories it drives won’t receive all the power they need, which may trigger a warning light. A qualified mechanic can usually tell by looking if a belt needs to be replaced.

How often should I replace my drive belt?
It should be inspected at least every year on vehicles that are more than a few years old to check for wear, and it should be replaced as necessary. Most automakers call for periodic inspection of the belt, but few list a specific replacement interval. Though these belts often last several years, they can become cracked, frayed or worn on the side that is hidden from view.

Why do I have to replace my drive belt?
If this belt breaks, the battery won’t get recharged, the air conditioner won’t blow cold air and the power steering will go out. In addition, if the belt drives the water pump, the engine could overheat.

How much should I pay?
The cost of repairs can depend on where you are as much as it does on what you need fixed. To get an estimate for your repair, go to our estimator, plug in your car’s year, make and model information, add your ZIP code, and choose the repair you need. We’ll give you a range for what your repairs should cost in your area.

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How Motorcyclist Can Improve Nighttime Riding Safety

Most motorcyclists admit that riding in the dark can be a harrowing experience. Not only is the overall visibility very poor regardless of which headlights you use, there are several dangers of being on the road at night, and these dangers cannot always be averted by wearing reflective gear and adhering to the rules.

For the most part, improving nighttime riding safety is all about enhancing visibility. This applies both to you, the rider, and the other road users. Riding at night also requires alertness and smart decision-making. After all, sometimes all it takes is a split-second decision to endanger your life or to avoid any kind of serious harm. Here are some tips to help you learn more about motorcycle safety at night.

Tips for Improving Nighttime Riding Safety

Addressing the matter of visibility is undoubtedly the biggest task when it comes to making your nighttime rides safer. Poor visibility will cloud your judgment-making process, such as the ability to navigate a sharp bend or avoid obstacles on the road. To that effect, you need to pay attention to the following tips:

# 1 Adjust Your Headlights Accordingly

Increasing your vision at night could be as simple as adjusting your headlights so that they properly illuminate the road ahead. All motorbikes will allow you to tweak the headlight orientation to some extent, whether it is simply twisting the lights upwards or downwards, or adjusting bolts and screws. Your owner’s manual should contain all the details on how to go about that procedure.

# 2 Clean Your Lights Regularly

No matter how well-adjusted your headlights are, you will only get maximum light efficiency if you keep your headlights clean. Ensure the lens is always clear, dust-free and without any moisture since these can impact significantly on the quality of the light.

# 3 Replace or Upgrade Your Bulbs

The quality of light emitted by the bulb deteriorates over time. This is why it is prudent to keep replacing your bulbs after some time even if they’re still working properly. As a rule of thumb, headlight bulb replacement should be done at least once every year.

Alternatively, you can upgrade HID lighting if you’re still using old-school lights or the more recent halogen lights that come with newer models. Upgrading the lights works in favor of both the rider and the other road users since it allows them to see the rider better.

# 4 Switch to LED Tail Lights and Indicators

Traditional tail lights are often too dim to be spotted by drivers and other road users from afar. Most modern bikes come with the brighter, crisper LED tail lights which are easier to spot. It may seem non-consequential but having brighter tail lights make you more prominent and easy to spot when riding in the dark.

And because miscommunication often results in catastrophe on the roads, upgrading your indicators as well to newer LED versions will work in your favor. Every nighttime rider should ensure their intentions to turn are clear to every vehicle behind them.

# 5 Consider Accent Lighting

Although this is the farthest thing from subtle, accent lights make you impossible to miss when driving on the road at night. The small LED lights can be placed on any part of the motorcycle to make you more visible to other road users at night. You also have the option of customizing with a wide variety of colors.

Ensuring your safety on the road at night is a continued practice. Adhering to these simple tips can save you from tragedy when driving on the roads at night, giving you peace of mind.

The Importance of Advanced Auto Repair Shops

Advanced auto repair shops have the latest equipment with a team of highly qualified professionals. Some of them specialize on certain areas of auto repair, while others deal with a wide range of mechanical issues. They are well equipped and are constantly updating their equipment to keep up with the latest manufacturers. You need to have the contacts of some of these auto repair shops for a number of reasons.

Honesty and Professionalism

These advanced auto repair shops invest a lot of money in their business. They have a name to protect and they are less likely to use malpractices to make an extra buck off you. A lot what they own is at stake and this could ruin their reputation.

Some of these auto repair shop may charge higher than other ordinary service providers. However, they provide the best service. You’ll realize that the extra cost is actually a bargain, when you visit one of the suspicious auto shops around the corner only for your car to develop endless problems soon after. It is therefore advisable to avoid saving money at the expense of your car.

Qualifications and Competence

Advanced auto repair shops employ highly qualified personnel. These are repair men who know what needs to be done to solve the issue with your car. They can pinpoint the problem within a considerably short period of time, while other mechanics will spend a lot of time fiddling with parts of your car either trying to figure out what the problem is or how to solve it.

Qualified professionals are important now more than ever before. The main reason for this is that the automobile industry has changed in recent years. The cars coming out of the factories are more complicated than what people used to drive more than a decade ago. They have complex electronics and sophisticated parts. You do not want a mechanic with suspect qualifications trying to mess around with your car. They can potentially ruin parts of it and make it even worse.

Advanced auto repair shop will ensure that their personnel have reputable certifications such as the ASE (Automotive Service Excellence). Mechanics are required to go through tests as well as two years hands on experience. The reputation of ASE has grown so much that some local authorities will only give licenses to mechanics that have it.  Most advanced auto repair shops will display the ASE certification in their shops.


Advanced auto repair shops tend to specialize in certain areas of repair. They ensure that they have an in-house team that is competent in the areas they choose to specialize in. Some of the areas include braking system, car electronics, and suspensions amongst others.

Specializing in these areas for an extended period of time gives the mechanic even more focused experience that helps them to solve car problems quickly and efficiently. On the other hand, it may be hard to find a mechanic shop around the corner that specializes in areas like car suspensions.


Advanced auto shops invest heavily in the latest machinery and technology. They invest in expensive hoists rather than cheap ones. This means that your car is much safer than when in an ordinary mechanics workshop. It also means they can solve most of the mechanical problems much more efficiently and effectively.

Written by Marc Laferierre, owner of Dents Unlimited. Dents Unlimited offers the best auto repair in Columbia MO.

How Replace Your Crankshaft Position Sensor

Most owners probably don’t know that their vehicle has a crankshaft position sensor until the engine dies, won’t start or starts running poorly. Then they find out they need a new one.

The crankshaft position sensor, typically mounted near or on the crankshaft, tells the engine computer how fast the engine is running. That’s so the control unit knows when the spark plugs should ignite the air-fuel mixture and, in some engines, when to inject fuel. These sensors are used on virtually all engines that have distributorless ignition systems.

If the sensor fails, the computer won’t know how to set the ignition timing, so the engine may stop running or refuse to start. It could also stall or run badly, possibly triggering the check engine light. Excessive heat is a frequent reason these sensors fail, and they also can stop working because of faulty electrical connections or wiring.

Some vehicles also have a camshaft position sensor that allows the engine computer to monitor the position of the camshafts (or camshaft), which open and close the valves, for more precise fuel and ignition management.

These sensors are not listed as routine maintenance items, but they often fail without warning. For that reason, some repair shops recommend they be replaced on high-mileage engines as preventive medicine.

Because a bad sensor doesn’t always trigger the check engine light — and some of the same symptoms could be caused by other problems in the fuel or ignition systems — sensors should be tested with a diagnostic scanner or multimeter before deciding to replace them.

Valve Clearance Adjustment For Your Car

It could, depending on the age, condition and brand of vehicle you’re driving. The maintenance schedules for some recent Hyundai engines, for example, call for a valve clearance inspection at 60,000 miles. Some Hondas call for an inspection at 110,000 miles. Some manufacturers advise valves should be inspected only if there is excessive valve noise. Others don’t mention valve clearance in their maintenance schedules.

Valves are opened by camshaft lobes on overhead camshaft engines and by rocker arms on pushrod engines. With extended time and use, the original clearances between these parts and the valve stems become bigger (with exhaust valves, the clearance can become tighter over time). That often leads to a clattering noise or more engine vibration that a driver might not notice for quite a while, because it increases gradually.

Intake valves open and close to let the air-fuel mixture (or just air in some modern engines) enter the combustion chambers, and the exhaust valves allow exhaust gases to escape. Too much or too little valve clearance can result in poor performance or a rough idle because the engine can’t “breathe” normally and operate at peak efficiency. Too much clearance means the valves will likely clatter and, over the long term, cause damage to the valves and/or camshaft lobes or rocker arms. If there’s too little clearance the valves won’t fully close, causing excessive heat, and the engine will lose power.

If your engine generates a loud clatter, it could be time for a valve clearance adjustment — though on some engines the valves don’t generate noise when there’s too much clearance. Loss of power could be a sign of a weak or broken valve spring, and a tapping noise could be caused by a loose rocker arm, so a clearance adjustment may not be all that’s needed. The mechanic won’t know for sure without inspecting the valves.

Because adjusting valve clearance (or “lash”) requires removing the valve cover (or covers on V-type engines) and checking both intake and exhaust valves, it isn’t a quick in-and-out maintenance item like an oil change, especially on engines that have three or four valves per cylinder. Plan on at least a few hours at the shop and a charge just for the inspection.

Eliminating valve clatter is one benefit of adjusting the clearance, but the engine will also likely become smoother and more responsive. In addition, correct clearance can extend the life of the valve system.

How Your Belts and Hoses More Durability

Maybe forever, if you rely on an overly liberal interpretation of the maintenance schedules set by some vehicle manufacturers. That doesn’t mean you should ignore them or even accept the manufacturer’s recommendations, though; instead, add them to your list of items that should be checked annually after the first three or so years of ownership.

With accessory drive belts, most manufacturers recommend only a periodic inspection for cracks, fraying or other visible wear, and on some GM vehicles the first inspection isn’t until 10 years or 150,000 miles, when someone else might own the vehicle.

Hoses? What about them? Most owner’s manuals don’t even mention radiator or coolant hoses (except that they can get really hot on an overheated engine). Other hoses, such as for the power steering or air conditioner, usually are mentioned only as something that should be checked as part of routine maintenance or when leaks are suspected.

Coolant hoses typically last several years, though anything longer than 10 years may be pushing the limits. Rubber weakens with age and from repeated exposure to hot coolant, so the older they get the higher chance they’ll leak and cause the engine to overheat.

Drive belts are usually the serpentine type that snake their way around pulleys to power the alternator, air conditioning compressor, power steering pump and perhaps the water pump, and they’re designed to last several years.

When to replace a drive belt is a judgment call by a repair technician, and it’s up to the vehicle owner to decide if the time is right given the manufacturers have largely chosen to stay out of it. We would err on the side of caution, because when a drive belt breaks your car comes to a halt. Depending on where this happens and when, a belt that fits your car may not be available until tomorrow, leaving you stranded.

Don’t confuse a drive belt with a timing belt, which connects the crankshaft to the camshafts and controls the timing of when valves open and close. Timing belts are out of view behind a timing cover and more complicated and expensive to replace, mainly because of the additional labor. Many vehicles have timing chains that are considered good for the life of the vehicle, but timing belts usually have a recommended mileage before changing. In some cases, that’s as soon as 60,000 miles but in others it can be 100,000 or more.

The dangerous when engine running too hot

You should be very concerned, because an overheated engine can be far more than an inconvenience. In extreme cases, driving an overheated engine even a short distance can destroy the cylinder head, engine block or internal parts.

Fortunately, most modern vehicles have a gauge that displays a constant temperature reading of the coolant circulating inside the engine, giving the driver an early warning about the cooling system.

The normal operating temperature for most engines is in a range of 195 to 220 degrees Fahrenheit, though most dashboard temperature gauges don’t show an exact temperature. Instead, there are typically markings for cold and hot on the edges of the gauge and a normal range in the middle. In most vehicles, the temperature needle will be at or near the center when the engine is at normal operating temperature, which usually takes at least a minute or two to reach after starting a cold engine.

In some vehicles, the needle may never reach the middle of the gauge, so don’t be alarmed if it stops short of the midpoint. Instead, you should monitor where it is when the engine is fully warm so that you know what “normal” is for your engine. That way, if the needle starts creeping up higher, closer to the hot mark, you’ll have early notice that something is wrong in the cooling system.

Using the air conditioning at full blast, stop-and-go driving on a scorching day, and towing can raise the engine temperature above normal, so don’t panic if there’s a small change in the gauge reading. You can pull off the road for a while or turn off the A/C and turn on the heater to try to cool things off.

If the temperature gauge consistently shows the engine is warmer than normal, have your cooling system checked ASAP.

Today, an increasing number of new vehicles don’t have temperature gauges. Instead, they have a warning light that (usually) glows blue when the engine is cold — one way of telling you that turning on the heater will generate cold or cool air. The blue light goes off once the engine reaches its normal temperature.

All vehicles also have a warning light that’s supposed to come on when the engine exceeds its normal temperature (it also illuminates for a couple of seconds when you start the engine). Without a gauge, though, it’s anybody’s guess as to how high above normal the temperature is or how long it’s been above normal.

If a red or yellow temperature warning light comes on, assume the worst: get off the road, shut off the engine and call for help. It’s better to play it safe than risk having to buy a new engine. Or a new car.

Maybe Your Signs Need a Tune-Up

If your engine misfires, hesitates, stalls, gets poor mileage, is hard to start or has failed an emissions test, it clearly needs something, though a tune-up in the traditional sense might not be the cure.

If you tell a repair shop you need a tune-up, the mechanic should ask why you feel you need one before recommending any service. Just like a doctor should ask what symptoms you’re experiencing, a mechanic should seek to diagnose the problem. And just as a doctor may recommend some tests, a mechanic may do the same.

You can speed the process by being ready to describe what happens and when (such as whether your car hesitates when the engine is cold or when passing at highway speeds), any sounds you hear and what you feel when your car’s “illness” shows up.

One caution about lower fuel economy: You should expect it to go down at least a little during the cold months, and maybe a lot. Colder temperatures make your engine and charging system work harder. In addition, winter gasoline blends have slightly less energy content than summer blends, so they don’t deliver as many miles per gallon. A tune-up won’t make Old Man Winter, or his effects, go away.

What are symptoms that might make you think you need a tune-up?

* A misfiring engine (when spark plugs ignite at the wrong time) could be caused by worn or fouled spark plugs. Bad spark plugs can also cause low fuel economy, hard starting and sluggish acceleration. Most plugs, though, should last 100,000 miles or more, and engine computers do a remarkable job of compensating for worn plugs, so that might not be the main or only culprit.

* A dirty or clogged engine air filter is more likely to reduce acceleration than fuel economy, according to tests conducted by the EPA. Because filters get dirty gradually over time, you might not notice a small but steady loss of performance until your car is accelerating like a turtle. But if you haven’t changed the filter in a couple of years (or sooner in areas that have a lot of soot in the air), that could be part of the problem.

* Engine deposits caused by low-quality or contaminated gasoline create drivability problems, and the cure for that might be a fuel system cleaning, either by a repair shop or with a gas-tank additive.

* An illuminated check engine light signals when something is amiss in the emissions control system, but depending on what the issue is it could also affect fuel economy or engine performance, so don’t ignore it. A faulty oxygen sensor, for example, leaves the engine computer in the dark about how to set the air-fuel mixture, and that can result in poor fuel economy.

* An old oxygen sensor (say, 90,000 miles or more) may still work well enough that it doesn’t trigger the check engine light but could still hurt fuel economy. Engine performance can also be reduced by more serious internal problems, such as valves that don’t seat properly or worn piston rings, or by restrictions in the exhaust system.

Because the same symptoms can suggest different problems, and there are often several possible causes and cures, it’s better to consult a professional mechanic than to try to be one if you have neither the experience nor the right equipment to diagnose drivability problems.In short, rather than ask for a tune-up, tell a mechanic what you’re experiencing and ask him or her to find the cause.

The reason of motor mounts is so expensive

The labor time it takes to replace the motor mounts can bring the price to more than $1,000 on some vehicles. On the Honda Odyssey minivan, for example, we’ve seen price quotes of $1,000 for just one new motor mount and $1,800 for all three.

Many motor (or engine) and transmission mounts can be replaced for far less, and some do-it-yourselfers brag that they’ve replaced theirs for less than $100. Be aware, though, that lifting any engine is serious business, and if you don’t know what you’re doing, you could severely damage your engine and your car.

Engine mounts are blocks of rubber mounted on steel brackets that are bolted into place to support the engine and reduce the amount of engine vibration and noise felt and heard in the passenger compartment. Usually there are three or four. If the rubber wears out or cracks, or if the steel brackets break, common symptoms are more engine vibration or movement under throttle and more noise. The engine might even move a few inches or more when mounts are broken.

Replacement mounts may not be that expensive; they can run from as little as $50 to as much as $200 at parts stores, depending on the vehicle, though liquid-filled mounts are more expensive.

But if you’re paying a shop to replace the mounts, the cash register doesn’t stop ringing once the parts are purchased. It can keep ringing for three or four hours if the engine is difficult to lift out of the way and other parts have to be removed or loosened to allow that. In cases where cooling and exhaust parts are involved, you may need new gaskets or hoses.

The engine typically has to be jacked up or lifted with an engine hoist to take all the weight off of broken mounts before they can be replaced. Manufacturers often leave little working room, extending the time it takes to replace the mounts and put everything back together.

Most repair shops will use a standard labor time estimate for replacing motor mounts on a particular vehicle, but some shops may quote less time than others, so it pays to shop around and ask. In addition, the hourly labor rate will vary among shops, so ask about that, too.