Duke and Cayenne | Allied Auto Works Grant Road

Duke and Cayenne’s Automotive Corner

"Welcome to Duke and Cayenne’s Automotive Education Blog. Each week, Duke and Cayenne open their book of knowledge to bark with you. Check back often to see how they can teach an old dog new tricks. Never stop learning!"

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Articles:

Duke's Differential Service



Duke here and I get a lot customers, like you, from all across the South Bay who write to me with questions or feedback.

One common question I am asked is: What is a differential and what does it do? You may have been told your differential needs service, or seen it as an option up on the service menu. Differential service covers a lot of things, so let's first talk about what a differential does.

As you drive through a turn, your outside wheels and inside wheels turn at different speeds. Kind of like the cars going around a race track - the ones driving in the outside lanes have a greater distance to travel than the cars in the inside lanes. The differential is what allows the outside and inside drive wheels to rotate at slightly different speeds so that the tires don't hop or skip while taking corners, or lose traction in dirt or snow. Differentials have gears in them that transfer the power from the drive train to your wheels - which is why they're often referred to as gear boxes. The gears need to be very strong to do this work, and they need to be properly protected so that they'll last.

All vehicles have some form of differential. If you have a front-wheel drive car, your differential is often called a transaxle and is located in the front. If you have rear-wheel drive, the differential is in the back of the car. If you have a four-wheel drive vehicle, you will have a differential in the front and the back - and in the middle as well. The center differential adjusts for differences in speed between the front and rear wheels.

Differential fluid lubricates and cools the gears. Over time, the fluid can get dirty from bits of the gears grinding off. The additives that keep the fluid clean and protect the differential break down over time. So your vehicle manufacturer has scheduled intervals for you to have your differential fluid changed.

Differentials are hard working mechanisms, and, along with the gears in a manual transmission, need to be serviced regularly with high-quality, replacement fluid. Your La Honda automotive service advisor can give you more information as to when your next differential service is recommended. You can also ask if they have a record of when the service was last completed.

As with most service intervals, if you are driving under more severe conditions, you will want to service your differential more frequently. "Severe service" conditions are defined in most owners' manuals, and include: frequent starts and stops, short trips, cold weather, hot weather and towing. All these conditions add to the stress of the vehicle and its parts. Also, off-roading in CA can be especially hard on differentials, especially if you cross streams. Proper service will extend the life of your gears and keep them running more smoothly. If you have never had your differential checked, visit contact-us for more information.

Well I hope I was able to help with what  a Differential Service is today!

Duke

Categories:

Drive Train

Duke's Cabin Air Filter With Allied Auto Works

Duke here and today we are going to learn about the cabin air filer, let's get barking!

What is a cabin air filter?

Is it:

  1. A filter for a house in the middle of the woods?
  2. A fresh, piney scent?
  3. A filter for the passenger compartment of your car?

Clever you, it's 3.

A cabin air filter cleans the outside air before it comes into the passenger compartment. It filters out dust, pollen, spores, bacteria, pollutants, sparrows, exhaust gas and odors.

These high tech filters can block particles larger than 3 microns. By contrast, a grain of sand is about 200 microns.

Now not all vehicles have cabin filters. They are fairly new on the scene. About forty percent of new vehicles come with cabin air filters, but the number is growing every year.

Cabin air filters can make for a very nice driving environment. Your car can be a haven during allergy season with very little dust and pollen getting into the cabin. However, the filter eventually gets clogged. When this happens, your heating and air conditioning flow can become restricted. The filter can even get kind of smelly.

Allied Auto Works
2073 Grant Road
Los Altos, CA 94024
650.968.7227

Check your owner's manual for recommended replacement intervals. Often, the owner's manual forgets about the cabin air filter, so ask your service technician for a recommendation. It's usually every year or 12,000 miles/ 19,000 kilometers. Change it sooner if you drive in dusty conditions or if you start to notice an odor from your ventilation system.

So keep your cabin air filter clean.

It may not help with your brother-in-law or the dogs in the backseat, but it will make your driving experience more enjoyable and mine too!

Duke

 

 

Categories:

Cabin Air Filter

Cayenne's Air Conditioning Service In Los Altos



Hey Los Altos, it's Cayenne and  do you hear loud noises under the hood when you turn on your air conditioner?

Do you only get cool air sporadically? If so, it is time to get your air conditioner checked. It's real easy to take your car's air conditioner for granted. Just push the right buttons and out comes cool, dry, clean air. But your air conditioning system needs attention from time to time to help it keep its cool.

When most people in Los Altos hear the words "air conditioning problems", it sends a shiver up their spine. That is because the air conditioning system is fairly complex. It has a lot of parts and when it's broken, it's expensive to repair.

What things can we do to prevent air conditioning breakdowns?

A common cause of air conditioning failure is leaks. Water and air can leak into the system. The system doesn't work as well with air in it. And water can cause rust that leads to damage of the A/C components. Also, refrigerant, the stuff that makes the air cold, can leak out, reducing the efficiency of the system, making it work harder to cool the air. Periodically evacuating the air conditioning system and recharging it keeps the proper amount of clean refrigerant in the system so it cools better and lasts longer.

You should also run the air conditioner regularly, even in a frosty Los Altos winter, so that it lubricates itself and keeps the seals from drying out, which leads to leaks. Your owner's manual will have recommendations for how often to service your air conditioner. Of course, if it's not working right, now is the time to get it checked. Allied Auto Works can inspect and test your air conditioning and offer evacuation and recharge services. This goes a long way to avoiding having to bring your air conditioner in for major repairs.

New environmental laws have stopped the manufacture of Freon, a refrigerant that was common in cars made before 1993. There is a very limited supply of Freon so the price is very steep. It may not be worth its weight in gold, but it probably is worth its weight in silver. If you have an older vehicle that uses Freon, you may want to consider having it retrofitted to use the new R134-A refrigerant. It will pay for itself in the long run.

So, if your AC is just a lot of hot air, bring it in to Allied Auto Works for an inspection and tell them Cayenne sent you!

Allied Auto Works
2073 Grant Road
Los Altos, CA 94024
650.968.7227

Categories:

Air Conditioning

Duke Lets You Know Your Vehicle is NOT Maintenance Free

dukeIt's Duke and as they say nothing is FREE including your car being maintenance free!

A generation ago, Los Altos car owners seemed to be more inclined to keep their vehicle’s preventive maintenance on schedule. One reason for this may be that vehicles back then were a lot less reliable than they are today. Having your sedan in to your Los Altos shop every year or two for repairs seemed to be a good reminder to keep the oil changed.

For example, almost everyone in Los Altos used to take their vehicles in for regular tune-ups. Vehicles had mechanical ignition systems, which meant ignition points, spark plugs and coils had to be replaced and the timing adjusted every few years. As long as the sedan was in for a tune-up at Allied Auto Works, the vehicle was inspected and you took care of any needed repairs at the same time.

Today’s engines have electronic ignition systems and engine control computers. Spark plugs can last for up to 100,000 miles. Vehicle reliability has vastly improved in the last few decades, and surveys report fewer problems with new vehicles than ever before. That also means that our sedans don’t experience a huge performance drop when they’re ready for some car care. But it doesn’t mean that they don’t need it.

Modern Los Altos motorists need to rely on calendars and mileage intervals to know when to schedule maintenance. Owner’s manuals contain recommendations on when different types of maintenance should be performed. Also, your Los Altos service center can provide advice about auto maintenance schedules. At Allied Auto Works in Los Altos, we know that benefits of staying on top of preventive maintenance are substantial. First, you’ll get better engine performance and fuel economy. Those two things alone return the cost of preventive maintenance: in fuel savings and safety. Also, routine maintenance has been proven to prevent major car repairs later on. Again, the cost savings can be significant. As the old saying goes, “Spend a penny, save a dime.”

Modern sedan engines may be more durable and reliable than their predecessors, but they’re more sophisticated and complex as well. For this reason, preventive maintenance today is even more critical than the old tune-up. Modern engine systems have a lot of vital parts that have to stay lubricated. These parts can be made of aluminum, plastic or steel. Special additives in lubricants are required to keep each of these materials from breaking down or corroding. Over time, these additives are depleted, even if the sedan isn’t driven. This makes fluid changes a critical part of scheduled maintenance if you want to keep your car on the road.

As an example, coolant fluid in your engine is a sophisticated mix that not only keeps your sedan engine cool but also protects and maintains its components. However, this fluid gradually gets contaminated and anti-corrosion additives are depleted. It can become corrosive and actually damage the sedan engine parts it was designed to protect. It can actually eat holes in your radiator and other engine parts. Changing the coolant could have prevented this expensive damage, and it’s a whole lot easier and cheaper than replacing a radiator.

Timely oil changes are more critical for Los Altos motorists than they used to be. Skipping just one oil change can start the build-up of oil sludge in your engine. Sludge can clog small engine passages, which cuts off the supply of lubricant to vital engine parts. Just this small bit of sludge can reduce the life expectancy of your engine. If the build-up continues, it could lead to engine failure within two or three years.

One word of warning to anyone in Los Altos who purchases used automobiles: take care when buying a leased vehicle. Los Altos folks who lease vehicles only intend to drive them for two or three years, generally the years when the vehicle is least likely to experience any problems. One of the reasons people lease vehicles is that they don’t want to be bothered with maintenance or car care. Before buying a pre-leased vehicle, be sure to inspect it for signs of damage that result from lack of proper care.

Los Altos motorists can all be grateful for the improved reliability of our modern vehicles. With proper maintenance and care, we can expect them to last longer, perform better, get better gas mileage, and require fewer repairs than ever before. We just have to be more conscientious about scheduling time for their care.

Well here is to the journey,

Duke

 

Categories:

Maintenance

Duke's Guide to Saving Fuel: Car Weight

dukeHi Duke here and do you ever wonder were all the junk comes from in your car and how it weighs your car down.  Well that is what we are going to explore today.

The team at Allied Auto Works in Los Altos and CA car owners are all talking MPG right now. Better gas mileage. Fewer emissions. Los Altos car owners want to save the environment and their pocketbooks.

And we all know—or should know—that preventive maintenance will help maximize MPG. But is there something more Los Altos car owners can do? After all, some of us Los Altos folks can’t cut back on our driving, and others would like to do more to economize.

Weight is one major enemy of fuel economy. The more you lug around in your vehicle, the more fuel you have to burn to get from Los Altos to Cupertino. And that means buying more gas in Los Altos and producing more emissions.

Of course, your sedan’s weight isn’t negotiable. And you can’t do much about the weight of your passengers. And this isn’t an article about diet and exercise.

But look around your sedan. Are you hauling a bunch of unnecessary weight around CA? Do you really need your golf clubs every time you leave your Los Altos home? Store sports equipment in the garage. Load it when you need it and store it when you don’t. Who knows? The extra exercise just might reduce the other type of weight in your vehicle.

The same goes for anything else in your car: make-up kits, music collections, extra electronics, spare clothing; whatever your particular extras may be. Pack it when you need it; store it when you don’t.

Clean out your vehicle. You’d be surprised how much weight you’re lugging around Los Altos in plain old junk. Toss old papers, leftover food, and regular old dirt. Even if it’s not a lot of weight, you’ll feel better when you get into your car. A good cleaning is also part of good car care.

Now, don’t toss stuff you really do need. You do need that spare tire—the one in your trunk. And a kit of emergency essentials is not a bad idea. But just carry around the day-to-day essentials. You can pack a more extensive kit and store it in your garage, then toss it in your Los Altos when you go on a longer trip, but you don’t have to lug it around all the time. After all, are you a driver? Or are you a junk chauffeur?

Lose the junk and save some money in Los Altos
.

Now where did i put that bone? I better go check Jeep!

Duke

 

Categories:

Fuel System

Talk To Cayenne About New Shoes For Your Vehicle

cay

 

Seasons Greetings, Cayenne here and I love going shopping for a new collar to show off my beautiful coat and I bet you always wondered how you couldmake your vehicle look more stylish and unique.  So today it is about the shoes for your car, custom wheels!

Custom wheels are one way that Los Altos folks express themselves and personalize their sedan. But they aren’t as cheap and easy as sticking decals on your back window. There are several critical factors need to be considered, including cost, the fit of the wheel, modifications that will have to be made to the sedan, how the new wheels and tires will affect the operation of the vehicle, your driving habits, and, of course, the style of the wheels. Most Los Altos motorists start with the last factor: the style of the wheels. But that should be the last thing we choose.

When considering custom wheels, you should first carefully consider your budget. Some wheels may require expensive adjustments to your sedan suspension system, brakes, or traction systems. You need to know what you can afford before you start shopping in Los Altos or get your heart set on a particular type of wheel.

There are three basic ways you can change your wheels. First, you choose a wheel that is already the same size as the ones on your sedan. Second, you can choose larger wheels, and third, you can choose smaller wheels. Mounting wheels that are the same size as the ones already on your car sounds easy enough. But, even though the wheel may be the same diameter as your current wheels, but that doesn’t mean it will fit your sedan. Besides diameter, wheels also have an offset. This is the measurement from the inside edge of the wheel to the point at which it bolts on. If your new wheel does not have the same offset as your current wheels, your sedan tires can rub on the inside or outside of the wheel well. This can lead to blowouts, uneven tread wear, and other mechanical problems.

The tire and wheel professionals in Los Altos at Allied Auto Works on 2073 Grant Road can help you select a wheel that has both the correct diameter and offset for your sedan. Or, if you really want a specific wheel in spite of the offset difference, your may be able to install adapters that will make the wheels fit.

Mounting larger wheels is a more involved process. There are several ways of doing this. You can mount larger wheels, but keep the overall tire diameter the same. Or you can “supersize” your tire/wheel combo. Mounting larger wheels while maintaining the same overall tire diameter is the easiest way to increase wheel size. You still need to adjust for offset. Generally, this alteration means that your new tires will be wider than the originals, so you will have to install adapters to keep them from rubbing on the wheel wells. Consult your Allied Auto Works service professional by calling 650.968.7227.

If you want to install larger wheels and increase the overall tire diameter, it is important that the package fits in the wheel well: you may have to do some minor modifications to your suspension. More importantly, you will have to reprogram your sedan engine’s computer to calibrate for the larger tire size. The computer calculates your speed based on the rotation of your tires, so increasing the size of the tires will render it inaccurate. Inaccurate speed calculations can mess up your anti-lock brakes and your stability control systems, as well as your speedometer and odometer.

As you can see, the more modifications you make, the more vital it becomes to have your personal and trust Allied Auto Works tech tire and wheel professional help you with your car care.

If you really want those “super-sized” tires, great: just factor in the issues listed above, plus you may have to have modifications done to your suspension system.

The larger wheels and tires will add weight to your vehicle. This weight is not held up by the suspension system, so is referred to as “unsprung” weight. Adding unsprung weight affects your car differently than just adding loads inside of your car. Unsprung weight can affect acceleration and braking. Putting large wheels on your sedan may require an upgraded brake system.

Also, you may not get the performance from your sedan that you’ve been used to. It may be sluggish when accelerating or harder to handle when turning. You may also find that the ride is bumpier than it was before. Of course, done right at Allied Auto Works, a good wheel job can sometimes improve a vehicle’s ride or performance. It just depends on your vehicle, the type of wheels you choose, and what you are hoping to accomplish.

Now let’s suppose you want smaller wheels on your vehicle. That should be easier, right? Not really. You still have to worry about offset, and it is critical that your computer be reprogrammed to account for calibration issues. And you may need adjustments to your suspension system.

Remember your budget? All of these scenarios require that you shell out some money. Perhaps now you can see why it is good auto advice for Sunnyvale auto owners to make that consideration first, before setting their heart on a specific type of wheel.

Another consideration should always be your driving habits. Do you do a lot of off-roading on the outskirts of Los Altos? Do you carry heavy loads? Do you tow a trailer on CA interstates? All of these factors must be considered when replacing your tires and wheels. Some wheels just may not be up to the work you need them to do.

For example, if you mount large rims on your vehicle, then add low-profile tires to avoid major adjustments to other systems, they won’t be able to handle off-roading as well as larger tires. There won’t be enough sidewall on the tires to absorb the impact from off-roading. You could end up with dented or broken rims.

At the end of the day, Los Altos auto owners should always put safety ahead of appearance. That’s why you shouldn’t add custom wheels to your vehicle without consulting with your Allied Auto Works tire and wheel professional. Cutting corners when installing custom wheels by not making necessary adjustments to all of the systems impacted by the change can result in dangerous operating conditions as well as expensive repairs down the road.

The personal and trusted auto professionals at Allied Auto Works want to remind Los Altos motorists of the basics of vehicle safety: preventive maintenance, emergency preparedness and professional repairs.

Stay safe, and stay on the road.

Cayenne

Categories:

Tires and Wheels

Cayenne's Smart Car Care Videos: Rotor Problems

cay

Hi Cayenne here and today I am going to share my Smart Car Care Video about rotor problems.

The brake rotor, or disc, is attached to your wheel. The brake pads rub on the rotor to slow your automobile.

Rotors can warp, crack or become misaligned. They can also be damaged by worn out brake pads that scratch grooves into the surface. These conditions result in less contact surface for the brake pads, leaving you with reduced braking power.

Over time and miles, rotors can also wear down below safe specifications. It is essential for Los Altos drivers to know that simply replacing brake pads on a wheel with a bad rotor will not solve the issue. Depending on their condition, rotors may be resurfaced or replaced.

Brake noise or a pulsation in the brake pedal are signs of potential brake problems that should be addressed right away. If you have any brake concerns, please have your personal and trust Allied Auto Works tech carry out a thorough inspection.

Give us a call and tell them Cayenne sent you!

Allied Auto Works
650.968.7227
2073 Grant Road
Los Altos, CA 94024

Categories:

Brakes

Duke Keeps It Straight And True In Los Altos: Wheel Alignment

duke

Duke here and it is the week before Thanksgiving and alot of us will be traveling with our cars so wheel alignment is on the venue today.

Most Los Altos folks worry about running out of gas or having a breakdown on the side of the road. That is why we practice preventive maintenance on our vehicles — that and to keep our repair bills down. But one important part of preventive maintenance that may get overlooked by Los Altos drivers is a periodic alignment inspection.

Poor alignment causes tires to wear rapidly, unevenly or both. This means they will have to be replaced early, and new tires are more pricey than an alignment check in Los Altos. Bad alignment can also cause damage to suspension and steering systems, which can be expensive to repair in Los Altos.

Tire wear on misaligned wheels can also lead to blowouts, which are dangerous, can lead to serious accidents, and can seriously damage your sedan. Also, poor alignment itself can be the cause of an accident, since the sedan may not steer properly.

One or more wheels on your sedan can be knocked out of alignment by running over a curb or a pothole on a bumpy Los Altos street. An accident, even a minor one, that involves a wheel on your car can lead to misalignment. The small bumps and bangs of everyday Mt. View driving can also gradually put your wheels out of alignment.

If you have had wheel damage to your sedan, or if you suspect that your wheels are out of alignment, you should get your alignment checked NOW. Any Allied Auto Works service specialist will give you that piece of auto advice. But good car care suggests that you also get your alignment inspected on a regular basis. At Allied Auto Works in Los Altos, we can take care of that for you.

Your owner’s manual or Allied Auto Works service professional can give you a suggestion on how often your alignment should be checked. If it doesn’t, then once a year is a good rule of thumb. However, if you drive a lot and especially if you drive on rough surfaces a lot, then you may want to consider an inspection more often. Ask your personal and trust technician for a recommendation.

If your sedan is out of alignment, one or more of the wheels is not tracking correctly and will “pull” against the others. Thus, one sign of poor alignment is that your sedan pulls to one side when you drive around Los Altos. Also, if you are driving a straight path and your steering wheel is off-center, that usually indicates an alignment problem.

Los Altos motorists should also check the wear on their tires. If they seem to be wearing out too quickly, or if you notice that a tire is wearing on one side more than the other, you should get your alignment checked.

When you get a diagnostic examination, your vehicle will be put on a rack and all the parts of the steering and suspension systems will be inspected for wear or damage. The alignment of the tires will be charted and compared to the original factory settings. If no repairs are needed on the steering or suspension systems, the wheels will then be adjusted to bring them back into alignment.

This may seem like a lot of bother for Sunnyvale motorists, but it’s a lot less trouble than a blowout or an accident. The old adage is good auto advice for all Los Altos residents: an ounce of prevention is worth a pound of cure.

So keep on driving, and keep all four tires on the road.

Safe travels,

Duke

Categories:

Alignment

Cayenne's Drive Train Service at Allied Auto Works

cayTake a ride on the train, the drive train!

Hi Cayenne here and today we will learn about drive train service.

The drive train in your vehicle includes all the essential components that transfer power from the transmission to the wheels. Those components differ depending on what type of vehicle you drive, namely, front-wheel drive, rear-wheel drive, all-wheel drive or four-wheel drive. The preventive maintenance your driveshaft needs will also differ by what type of vehicle you drive.

Let’s start with front-wheel drive. In this vehicle, the transmission and the differential are combined in one component, known as the transaxle. The transaxle is connected to two half-shafts (axles), which are then connected to the wheels with a constant velocity (or CV) joint, which is protected by an airtight rubber boot.

Allied Auto Works service for this type of driveline includes servicing the transaxle and inspecting the CV boot. If the boot is damaged, the CV joint will need to be inspected, and the boot will need to be replaced. If you hear a clicking noise in your wheel wells when you turn, you may have a damaged CV joint. A damaged CV joint should be replaced.

Rear-wheel drive vehicles generally have a transmission in the front of the car and the differential in the back. A driveshaft (it looks like a long tube) connects the transmission to the differential. Some vehicles may have a two-piece driveshaft, which are connected to the differential with universal joints or U-joints. Again, the differential is connected to two half-shafts that go out to the wheels.

Allied Auto Works service on the drive train on a rear-wheel drive vehicle starts with servicing the differential. It will need its fluid drained and replaced regularly. The seals on the axles should also be inspected for wear or leaks. Leaking or damaged seals may mean the axle needs to be serviced as well. Also, U-joints can wear out. If you hear clunking or feel a jolt when you shift into drive or into reverse, it could indicate a driveline problem.

All-wheel drive sedans provide power from the transmission to all of the wheels, instead of just to the front or rear. The advantage is that the vehicle can adapt to different driving conditions and transfer more power to the front or back wheels as needed. The disadvantages are that the driveline is more complicated, and the vehicle weighs slightly more.

Many all-wheel drive vehicles are based on a front-wheel drive set-up. They also have a differential in the rear and one in the center of the vehicle that allows power to transfer to the front and rear. A shaft runs from the transfer case to the center differential, and another from the center differential to the rear differential.

Servicing an all-wheel drive at Allied Auto Works involves servicing ALL of the differentials and inspecting the joints and seals for wear, leaks or damage.

Four-wheel drive vehicles are rear-wheel drive vehicles that have an option to transfer power to the front wheels. In other words, they can be driven as either rear-wheel or four-wheel drive vehicles. These vehicles are specifically designed for the harsh driving conditions Los Altos drivers encounter off-road. The driveline in a four-wheel drive vehicle is similar to that of an all-wheel drive vehicle. The center differential, however, is a transfer case. Maintenance requires servicing both of the differentials and the transfer case, as well as an inspection of the joints and seals.

Los Altos car owners would be wise to check with their owner’s manual for recommendations on how often to service their sedan drive train. It’s also good auto advice to check with your personal and trust Allied Auto Works tech as well. You may live in an area in CA where weather or driving conditions require more frequent servicing of the drive train.

If you drive off-road, it is important to service your driveline more often frequently than the typical recommendation. Conditions encountered off-road around the Los Altos area are particularly hard on your driveline.

Good car care at Allied Auto Works in Los Altos always includes taking care of your driveline. Without it, your sedan becomes a very large paperweight.

Allied Auto Works is located at 2073 Grant Road in Los Altos. We provide comprehensive auto repair and maintenance services for residents of Los Altos, Sunnyvale, Mt. View, Cupertino and Los Altos.

Thanks again for letting me bark at you! 

Cayenne

Categories:

Drive Train

Duke's Driving Tip: Is It Time To Replace Your PCV Valve?

dukeIt's Duke again and today we are going to bark about replacing your PCV Valve, let's get started!

Improved fuel economy has two benefits for Los Altos car owners: less fuel is necessary and fewer emissions are released. Mt. View cars and trucks run cleaner than ever. Los Altos auto owners may not realize that the first federally mandated pollution control device came out almost fifty years ago.


CA motorists that were around in the early 60's may remember that the PCV Valve came out on 1964 model cars. PCV stand for Positive Crankcase Ventilation. Mt. View Drivers: Is It Time To Replace Your PCV Valve?The crankcase is the lower part of the engine where the crankshaft is housed and where the engine oil lives. The crankshaft is connected to the pistons that power the engine.

When fuel is burned in the sedan engine, it pushes the pistons down and the crankshaft rotates and sends power to the transmission. Some of the explosive gases from combustion squeeze past the pistons and down into the crankcase.

Now this gas is about 70% unburned fuel. If it were allowed to remain in the crankcase, it would contaminate the oil and quickly turn it to harmful sludge. Sludge is like Vaseline and clogs passages in the engine leading to damage.

Also, the pressure build up would blow out seals and gaskets. So in the old days, there was just a hose that vented the crankcase out into the air. Obviously, not good for our air quality in Los Altos.

Enter the PCV valve. It’s a small, one-way valve that lets out the 
detrimental gases from the crankcase, and routes them back into the air intake system where they are re-burned in the engine. Fresh air comes into the crankcase through a breather tube. This makes for good circulation in the crankcase. And that gets the harmful air out. As you can imagine, however, the valve gets gummed up over time.

Mt. View drivers that skip oil changes now and then will notice that the PCV valve gets gummed up even faster. If the PCV valve is sticking in your sedan, the gases won’t circulate as well, leading to increased pressure in the crankcase. That, in turn, can lead to oil leaks. Fortunately, the PCV valve is very inexpensive to replace at Allied Auto Works in Los Altos. Some can even be checked by your personal and trusted Allied Auto Works advisor.

Your sedan vehicle manufacturers usually recommend they be changed somewhere between twenty and fifty thousand miles. Unfortunately, PCV valve replacement is left out of some sedan owner’s manuals, but at Allied Auto Works, we will make sure your PVC is replaced if needed.

All of us Mt. View car owners can do our part for the environment. Watch that lead foot, stay on top of our vital automotive maintenance and don’t forget to replace our PCV valve.

Here's to another day of learning,

Duke

 

Categories:

Parts
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