Fuel Injection: It Keeps Getting Better for Kent Drivers

Posted by & filed under Fuel System.

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Kent car owners know that engines need to burn fuel to operate. Fuel is pumped from your fuel tank to your SUV engine where it is squirted—or injected—into your engine’s cylinders. This is the function of the fuel injectors.

There are two ways to inject fuel into an engine. Fuel needs air to burn, so in the first method, fuel is injected into a port and allowed to mix with air and before it is drawn into the cylinders. In the second method, fuel is injected directly into the cylinders and mixes with air after it enters the SUV engine.

Direct injection engines burn fuel more efficiently than conventional SUV engines. Some models can deliver the power of a V8 with the economy of a V6.

For example, in one family of engines, the conventional version (a V6) delivers about 250 horsepower. The direct injection version delivers over 300 horsepower and gets about the same gas mileage. The turbocharged version delivers 350 horsepower.

Fuel Injection: It Keeps Getting Better for Kent DriversWhy the big difference in power? Direct injection systems allow fuel to be squirted into the SUV engine at hundreds of times the pressure of a conventional engine. This atomizes the fuel better (breaks it down into tinier droplets), which means more of it gets burned, which translates to more power for your engine. It also results in cleaner emissions.

Fuel injectors are precision instruments. They have to deliver the right amount of fuel at exactly the time the SUV engine needs it. They are also engineered to inject fuel with a specific spray pattern. This spray pattern allows for maximum fuel efficiency and proper atomization. Direct injection engines require a much higher degree of precision than conventional engines. For this reason, they are equipped with more sophisticated computers.

When fuel injectors get dirty, their precision drops off. The spray pattern won’t be precise, and the timing of fuel delivery may be off. This decreases fuel efficiency and gas mileage as well as delivering less power to the engine.

Kent auto owners should understand that fuel injectors are not cheap to replace. Direct injection fuel injectors are even more pricey. And we’re talking a mortgage payment to buy a set of new fuel injectors for a diesel engine.

So keeping your fuel injectors clean is just good auto advice. The best way to do this is to change your air and fuel filters regularly and practice other habits of good car care and preventive maintenance. Cleaning additives in your fuel can also help.

If you do end up with gum or varnish in your fuel system, you’ll need a professional fuel system cleaning. This will clean out your whole system, including the injectors. The good news is that with proper maintenance, Kent motorists will enjoy better gas mileage and their fuel injectors will last for a long time.

Is There Such a Thing as Lifetime Fluid?

Posted by & filed under Fluids, Maintenance.

Some fluids are promoted to “last a lifetime,” but they don’t always declare what the lifetime expectancy is. In an effort to effectively market their products as low maintenance, there are a lot of advertisements that certain transmission fluids, drive train fluids, and engine fluids will last a lifetime. Unfortunately, those claims do not specify that the fluids are meant to last “their lifetime,” not “your vehicle’s lifetime,” “your lifetime,” or the lifetime of your engine and/or transmission.

The quickest way to replace a new engine or transmission is to not change the fluid. Your Owners Manual will say that you don’t have to change the fluid, but don’t believe it. The manufacturer is trying to lower the initial cost of ownership. The best thing that you can do for your car to help it run for 100K, 200K, or 300K miles is by maintaining regular fluid services. Most vehicles will last a long time, if you service the:

  • Transmission every 30,000 miles
  • Engine oil every 5000 miles
  • Engine coolant every 30,000
  • Brake fluid every 2 years
  • Power steering fluid every 30,000 miles
  • Differential fluids every 30,000 miles

That’s not saying you don’t need to pay attention to your Owners Manual. There are some vehicles that have 10 year / 100,000 miles warranties but require a fluid service within 10,000 or 15,000 miles. If you don’t do this, the warranty is void.

Mini Cooper Transmission Fluid
Photo Credit: NRMA New Cars via Compfight cc

We install engines and transmissions all the time in cars that have 50,000 – 80,000 miles on them and it’s always for the same reason: the oil did not get changed, or transmission fluid did not get changed. These things are full of moving parts that wear and leave behind debris and deposits that the filters do not remove. A lot of vehicles don’t use transmission filters, so the only way to clean the fluid is to flush it out with new fluid.

When you purchase your next car and the dealer says it has lifetime fluid in it, ask them if the vehicle has a lifetime warranty on it. That “lifetime” fluid is yet another one of those misguided recommendations by the car maker to make your car appear to be more “maintenance free” than it really is. Recommendations like this are designed by the marketing department as a PR stunt to get you to purchase the vehicle.

The truth is, all vehicles need to be maintained on a regular basis in order to perform properly, and this includes the eventual replacement of all fluids. Period. If you use your vehicle for any length of time, certain fluids will break down, lose their viscosity, become dirty from particulates, become acidic, etc.

How long the fluids’ lifetime lasts is dependent upon several things:

  • The make and model of your vehicle.
  • The amount of mileage on your vehicle.
  • If you drive long or short distances.
  • If your vehicles is driven hard, like in stop-and-go traffic, hard and fast around corners, etc.

In short, if you don’t change these fluids preemptively, then the fluid’s lifetime will certainly dictate the lifetime of your vehicle – which could be as low as 100,000 miles.

If you would like to discuss the best fluid options for your vehicle and driving habits, contact one of our experienced technicians at Central Avenue Automotive. You can give us a call at (253) 854-6762, or schedule an appointment using our convenient online appointment booking service. You can also come into our repair shop, located at 1514 Central Ave. Kent, Washington 98032.

Looking Down the Road – Headlamps

Posted by & filed under Maintenance.

If you’ve ever been driving around Kent and had a headlamp go out, you’ve probably just wanted to replace the bad bulb. If your car uses halogen headlamps, they dim over time. So if you just put in one, they won’t have the same brightness which can be distracting and will affect your field of vision.

To have your headlights inspected, visit us at Central Avenue Automotive. We’re at 1514 Central Ave S Ste A in Kent, WA 98032. Or give us a call at 253.854.6762

Experts in Kent recommend replacing your halogen headlamps every year. It’s easy to remember if you do it when daylight savings time changes in the fall. That way you’ll have bright headlamps for those long Kent winter nights.

There are other types of headlamps in addition to halogen. There are the old standard bulbs that have been around for decades. These are OK, but you can usually upgrade to halogen. They cost a little more but you can’t believe the difference. If you do a lot of night driving you might want to use a premium halogen bulb that filters out the yellow hues and give a very white light that’s a lot like daylight.

You may have noticed those bluish headlights on luxury cars. They are high intensity discharge or, HID lamps. They really light up the road. You can upgrade to HID on some vehicles. These cost quite a bit, but they’ll last for the life of your car. If you want your Kent friends to think you have HIDs, you can get halogens with a bluish tint – no one needs to know.

Seriously, though, night driving is all about reaction time – time to stop – time to get out of the way. You can’t react to what you can’t see. You need headlamps that’ll give you a good view down the road and good peripheral vision as well. And your headlights need to be aimed correctly so you can see and also, to keep your lights from shining off into on-coming traffic.

You may have seen older vehicles with headlights that are awfully dim and maybe even yellow. That’s because the plastic headlight lenses have gotten cloudy and yellowed with age. They can be replaced, but many Kent service centers offer a service to restore the lens that’s a lot cheaper.

You can’t drive if you can’t see. AAA reports that nine out of ten vehicles have dirty or yellowed headlamps. So run the window squeegee over your headlights when you gas up to clear the dirt and bugs. Get your lenses restored if they need it and don’t forget to replace your standard or halogen bulbs every fall.

Why to Have a Professional Diagnostic

Posted by & filed under Maintenance, Monitoring System.

IF I HAVE HAD MY CODES READ BY A PARTS STORE, ISN’T THAT A DIAGNOSTIC?

What is a diagnostic? It’s the process in which a technician determines the cause of failure in a vehicle, which may require the use of sophisticated scanners, computers, wiring diagrams, special tools, and an experienced, well-trained technician. Central Avenue Automotive has the latest factory OEM diagnostic equipment for most foreign and domestic cars and trucks.

Advances in technology have made cars more efficient and more comfortable, but this has come at the cost of making cars much more complicated. In the early 1980s, cars started out with just one computer to help manage basic engine functions. Computers were introduced to cars in an attempt to improve vehicle emissions. Today’s cars and trucks have multiple computers and a complex network that ties them all together.

Performing Engine Diagnostics

Photo Credit: Hugo90 via Compfight cc

These innovations have made it much more difficult to diagnose vehicle failures, which makes it impossible to diagnose without the correct hardware and software since each car model has its own software and hardware package, plus special tooling. Diagnostics specific to the car model allows the technician to “talk” to the car, retrieve data from the vehicle’s multiple computers, and perform car diagnostics by reading codes. However, this is just the first step in the vehicle’s diagnostic process.

A fault code does not tell the technician what is wrong with the vehicle! What a fault code does is identify the area of the onboard computer system that is having the malfunction. It is up to the technician to download the data and interpret it, then do pinpoint testing to determine the failure and the appropriate repair. One of the most common things we see at Central Avenue Automotive are vehicles that have a fault code for a specific circuit and a parts store has pulled codes for it. The vehicle owner has replaced the part that code identified was not operating within the vehicle specifications, only to find out that the problem was not fixed. It happens, and that is why having a technician with problem-solving experience is so critical to diagnostics.

Today’s retail auto parts stores offer a customer “disservice” by selling generic code readers. These generic code readers do not read all the codes specific to the vehicle. Instead, they read just the codes that are related to vehicle emissions. Unfortunately, these generic codes tend to lead people in the wrong direction. An example of this is the O2 sensor code. An auto parts store reads the code, provides a printout of the code, and has a disclaimer at the very bottom in small print. The disclaimer says to consult an automotive technician for a diagnostic. But like most of us, we tend to ignore the fine print, buy the O2 sensor and install it. Afterwards, our check engine light is still on and we have the same fault code!

A diagnostic from a qualified technician would have revealed that the O2 sensor was working fine. The real problem is that it was another component that had failed and was sending bad data to the engine computer. As a result, the O2 sensor sent a fault to the engine’s computer that it was not seeing the correct air fuel ratio due to a faulty air flow sensor, and there was no fault code available for the air flow sensor. See how a generic code reader can mess things up?

All newer vehicles are equipped with built in computers that monitor every aspect of the car. Some of the areas that it monitors are:

  • Cruise Control
  • Security
  • Navigation
  • Air Bags
  • Keyless Entry Systems
  • Anti Lock Brakes
  • Climate Control System
  • Fuel Pump
  • Engine Cooling Fan
  • Body
  • Chassis
  • Powertrain
  • And More!

In other words, a modern car is a rolling computer network. It is amazing how many embedded controllers a vehicle can have. The onboard computer not only monitors the proper functioning of your car, it also records issues and stores them as codes. These codes can then be used to determine the sources of car trouble whenever it occurs. These codes are generated when a particular component of the vehicle fails to report back to the computer correctly. For example, if there is an issue with the engine, the engine will not report back to the computer correctly and an error code will be recorded.

This system of codes helps auto technicians to diagnose your vehicle. These codes can be diagnosed at Central Avenue Automotive by one of our experienced technicians. Our technician will use a scanner or a laptop device to tap into your car’s computer and gain access to the recorded error codes and the vehicle’s data stream. Some diagnostics can be performed in as little as one hour.

Once an issue has been diagnosed, our top-of-the-line technicians are trained to resolve any code your car throws at them. Give us a call at (253) 854-6762, or schedule an appointment using our convenient online appointment booking service. You can also come into our repair shop, located at 1514 Central Ave. Kent, Washington 98032.

Timing Belt Replacement

Posted by & filed under Maintenance, Parts.

WHY DOES THE TIMING BELT ON MY CAR NEED TO BE REPLACED EVERY SO OFTEN?

Timing is everything to a well-operating engine, and that is why a timing belt is so important. Most of our customers at Central Avenue Automotive are aware that their vehicles require timing belt replacement after a recommended period of mileage, but not many understand why. That’s why today’s blog is dedicated to educating you on the importance of a timing belt and why the timing belt in your vehicle needs to be replaced every so often.

Think about how a metronome determines the speed of a piece of music, or how the second hand on your watch counts off the minutes of each hour. Now, think about how out of sync the world would be if we did not have metered time in music, or if clocks and watches took a willy-nilly approach to keeping time.

Think of a synthetic rubber timing belt, which is reinforced with fiber cords. When the engine is on, it’s in constant, timed motion. Thanks to the belt, the connection between the crankshaft and camshaft is in sync. So why is this important? The crankshaft converts energy from the pistons, which move up and down in rotational energy that is applied to the transmission, which eventually turns the wheels. The camshaft opens and closes the engine’s valves to allow air and fuel in the engine through the intake valves, and out through the exhaust valves. The timing belt links the two in harmony. Without the timing belt, the pistons and valves would collide, fuel and air would not enter the engine correctly, and exhaust would not exit correctly. All of this chaos will prevent the engine from running. Just like a bicycle chain, if it’s damaged, the bike will not pedal forward.

The timing belt does wear down and stretch out over time. Timing belts are exposed to engine oil and coolant leaks, which will damage the belt and make it more likely to slip or break. If the timing belt slips or breaks, this is bad news for the vehicle and its owner’s pocket book. Why? This internal collision can destroy a large amount of the engine and sometimes entire engine replacement is required. Therefore, it’s important to stay ahead of your timing belt’s life span by replacing it every four years or 60,000 miles, or in newer vehicles, every 100,000 miles. Be sure to check your vehicle’s maintenance manual or give Central Avenue Automotive a call to see what your car or truck’s manufacturer suggests.

Timing Belt Replacement

Timing belts on most vehicles range from $300 to $600. Some European cars and exotic cars can cost more. When you replace the timing belt, there are some other components that need to be inspected during the repair process. These components include the following:

• Water pump
• Idler pulleys
• Tension pulleys
• Drive belts
• Engine oil seals

Usually, it is cheaper to inspect these components as preventive maintenance work while replacing the timing belt because there is no extra labor cost. Most of the time, it is best to replace the other belts due to the fact that they are already removed in the preventive maintenance process. Camshaft and crankshaft seal replacement will also have a substantial labor reduction, due to the fact that most of the components removed during timing belt replacement are much easier to replace when the timing belt has been removed from the vehicle.

Fortunately, timing belts are not expensive (compared to major engine repair) and can easily be replaced during your vehicle’s major maintenance service. Any time you bring your vehicle into Central Avenue Automotive for scheduled maintenance, we will visually inspect your timing belt for cracks, shredding, tears, or excessive slack. If we see that your timing belt requires replacement, even if it’s before the recommended 60K or 100K mileage marker, we’ll notify you so you can authorize replacement.

Not only are we honest about our timing belt repair processes, but we are meticulous about doing the timing belt replacement correctly on all the foreign and domestic vehicles we service. That’s one of the reasons why Central Avenue Automotive is the mechanic you can trust for timing belt replacement in the Kent, Washington region. Click here to schedule an appointment for timing belt replacement. Or, if you prefer, give us a call at (253) 854-6762.

Brake Service

Posted by & filed under Brakes.

Brakes really aren’t optional equipment. And taking care of them isn’t optional either.

A regular brake inspection is on every car’s maintenance schedule. An inspection will check your brake system and let you know if there are any problems. Of course, if you’re having trouble with your brakes, get your car into a Kent or Federal Way service center right away. And watch out for these problems:

  • Low or spongy brake pedal
  • Hard brake pedal
  • A brake warning light that stays on
  • Constantly squealing or grinding brakes
  • Vibrations or clunking sounds when you apply your brakes

There are two types of brakes: disc and drum. Disc brakes have a rotor that’s attached to the axle. Calipers straddle the rotor, kind of like the brakes on a bicycle. Drum brakes are more common on back wheels. Pads, called shoes, push against the inside of the drum to slow the vehicle.

There are several things that need to be serviced on the brake system. First, the brake pads and shoes wear out with use, and become too thin to really help. If the brake pads wear away completely you can damage the rotors. The calipers can grind grooves in the rotor. Then the rotor must either be resurfaced or replaced and that can be expensive. But putting it off is dangerous because your vehicle won’t stop as quickly. Sometimes rotors warp or crack and must be replaced.

Brake fluid is also important. When the brakes are applied, the pressure in the fluid activates the brake pads or shoes. Not enough fluid, not enough pressure to brake properly. Also, water builds up in the brake fluid over time, which leads to corrosion, leaks and brake damage, and with hard use, the brakes could severely fade or even fail. You should change the brake fluid when your manufacturer recommends it.

There are different grades of brake pads. There are regular, metallic and ceramic – higher grades cost more, but give better braking performance and smoother operation. It’s OK to upgrade your brake pads. But, never use a grade that’s lower than what the manufacturer recommends.

Be sure to properly maintain your brakes because it’s a lot cheaper than paying your nearest Auburn area body shop after an accident.

Timing Belt

Posted by & filed under Parts.

Ever heard the sad tale of a staggering repair bill from a broken timing belt? Bad news. Let’s take a lesson from their woes and remember to think about our timing belt.

First, let’s review what a timing belt does. The top part of the engine, over the cylinders is called the cylinder head. The head contains the valves. There’s at least one valve that lets the fresh air into the cylinder. This air, mixed with fuel, burns to create power. Then another valve or two open to allow the exhaust out of the engine. Each cylinder has 2 to 4 valves – that’s 12 to 24 valves for a V-6, up to 32 values on a V-8. The opening and closing of the valves is done by a camshaft. The timing belt uses the rotation of the engine to drive the camshaft which opens and close the valves. It’s called a timing belt because it has to be adjusted to rotate the camshaft to keep proper time with the engine so that everything’s in sync.

The timing belt is a toothed rubber belt . But some cars use a timing chain or timing gears instead of a belt. Timing chains and gears are much more durable, but manufacturers are using belts more because they are quieter – and cheaper. If you have a small or mid-sized passenger car, crossover or mini-van, chances are you have a timing belt.

Unfortunately, timing belts fail without any warning. That shuts you down right away. A technician can inspect your timing belt and look for cracks and looseness. But getting to the belt to take a look can be almost as much work as changing it on some cars. That’s why manufacturers recommend replacing the belt from time to time. For most vehicles it’s from 60,000 to 90,000 miles or 95,000 to a 145,000 kilometers. If your owners’ manual doesn’t specify an interval ask your service advisor.

One AutoNetTV producer has had two timing belts fail. The first was while he was waiting at a stop light – that repair cost several thousand dollars. The second was while driving on the highway – that one cost more than twice as much. Both had the cars out in the shop for three weeks. His cars had what we call “interference engines”, meaning that the valves and pistons are very close to each other. If the timing belt slips even one notch, the pistons will slam into the open valves. That’s why our friend’s highway failure was so much more expensive – his engine was traveling so fast that the valves were smashed and they chewed up the cylinder head.

A non-interference engine will just shut down if the timing belt breaks. You’re stranded, but the engine doesn’t suffer permanent damage. In both cases, our hapless friend was just a couple oil changes past the recommended interval for changing the timing belt. This is one of those things that you just cannot put off. Now replacing a timing belt is not cheap – but repairs for a broken belt can be many times as much.

Check your owners’ manual right away – especially if you have more than a 60,000 miles or 95,000 kilometers. You may need to get that belt replaced right away. And on many cars, the timing belt drives the water pump. So, it may be a good idea to replace the water pump while you’re at it because 90% of the work required for the new pump is already done with the belt change. Doing both at the same time saves you a lot of money because as they say, “timing’s everything”. Parts, Timing Belt

Vote in KING5’s Best of Western Washington

Posted by & filed under Uncategorized.

Central Avenue Automotive is a 2013 Nominee for Best Repair for Western Washington! We’d be grateful if you’d support us with a vote. Just click the badge to give us some love! Thank you so much for letting us work with you 🙂



BEST Repair

Commitment to Make Your SUV Last At Central Avenue Automotive

Posted by & filed under Maintenance.

For advice on how to make your SUV last longer, visit us at Central Avenue Automotive
1514 Central Ave S Ste A
Kent, WA 98032
253.854.6762

These days many people in the Auburn area are really committed to making their cars last a long time. First thing: you’ve got to start with what you’ve got. It’d be ideal if people started with a brand new car, never missed a scheduled service item, paid attention to the severe service maintenance schedule and had regular inspections. But if you’ve had the vehicle for a while, or bought it used, its maintenance history is what it is; and that’s where you start.

Go through the maintenance schedule for your SUV and see what’s been done and when. Have your Kent service advisor at Central Avenue Automotive do an inspection and come up with a list of stuff that needs to be done. Review the list and prioritize the work, talk about budget and make a plan to get caught up.

Making a plan is so important. Suppose you go in for an oil change and learn you need your cooling system serviced, a transmission service and are coming up on a timing belt replacement in the next 5,000 miles. You might be pretty overwhelmed.

To make it even more stressful, these are all very important systems that are expensive to repair if there’s a failure. In consultation with your Kent service advisor, you might decide to take care of the transmission on this visit, set an appointment for the cooling system service next month and get an estimate for the timing belt replacement so you’ll be prepared for it in a few months.

Having a plan for taking care of these important services will set your mind at ease.

Nitrogen Fill For Tires in Kent WA

Posted by & filed under Tires and Wheels.

So, everyone in the Kent WA area knows how great helium is – you know, party balloons, squeaky voices. But a lot of people around Kent still haven’t heard about the benefits of nitrogen in your tires, and how it can help your tires. Here’s some great advice from AutoNetTV, brought to you by Central Avenue Automotive.

Nitrogen has actually been around for a long time in the Kent WA commercial sector, but it’s just starting to catch on for private vehicles in the 98032 zip code area.

Why nitrogen in your tires? Air is air, right? Actually, it turns out there is a difference.

Contact Central Avenue Automotive to learn more about nitrogen in your tires
You can find us at:
1514 Central Ave S Ste A
Kent, WA 98032
Or call us at 253.854.6762

The heart of the matter is maintaining proper tire inflation. When your tires are properly inflated, they last longer, handle better and more safely, and save you money at the gas pump.

The problem is that tires filled in Kent with regular air can lose a pound and a half of air pressure every month. This just happens as the oxygen in the tire seeps out. So if you don’t check your pressure for a month or two, well, you can be significantly low – low enough to actually affect your handling, shorten tire life and waste money at the fuel pump.

How does nitrogen help? Regular air contains about 78% nitrogen. Nitrogen is the largest molecule in air. It’s dry and non-flammable. Air also contains 21% oxygen, which is smaller and seeps out of the tire three to four times faster than nitrogen.

So, a tire filled with nitrogen at Central Avenue Automotive will take about six months to lose as much pressure as regular air does in just one month. So it’s more forgiving for those who don’t check their pressure every week.

Also, when oxygen is at higher temperatures – like those inside your tire when you’ve been driving for awhile – it oxidizes the inside of your tire. Getting the oxygen out of your tire means that it’ll last longer.

Who’s using nitrogen? Well, let’s start with NASCAR and Indy. These racers like nitrogen’s ability to maintain consistent tire pressure and reduce tire temperatures under very demanding conditions. The US government requires all commercial aircraft to have nitrogen in their tires. NASA and the US Military use nitrogen. The mining industry has been filling those “humongous” tires with nitrogen for years. And semi trucks and trailers are starting to use nitrogen extensively.

You may have heard some detractors of nitrogen. But the studies and white papers from tire and vehicle manufacturers demonstrate that the technology really works.

In fact, a prominent consumer research group did a study where they filled some tires with air and some with nitrogen and stacked them outside for a year. They observed that the nitrogen filled tires did hold their pressure better, but they couldn’t see the economic benefit. But that particular test has very little to do with the real world. Most tires are actually holding up cars and they also get driven around and do a lot of work. So if nitrogen helps them last longer, saves gas and gives safer handling, it’s worth considering.

Learn more about nitrogen in your tires by watching our attached auto tips video from AutoNetTV.