AUTONET TV

Fuel Injection Keeps Getting Better for CHERRY HILL Motorists

CHERRY HILL residents know that engines burn fuel to operate. Fuel is pumped from your fuel tank to your 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 engine.

Direct injection engines burn fuel more efficiently than conventional 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 . The turbocharged version delivers 350 horsepower.

Why the big difference in power? Direct injection systems allow fuel to be squirted into the 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 and improved fuel economy.

Fuel injectors are precision instruments. They have to deliver the right amount of fuel at exactly the time the 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 fuel economy for CHERRY HILL drivers as well as delivering less power to the engine.

Fuel injectors are not cheap to replace. Direct injection fuel injectors are even more expensive. 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 for CHERRY HILL residents. The best way to do this is to change your air and fuel filters regularly and practice other habits of good vehicle care and preventive maintenance at Joe D'Auria's Auto in CHERRY HILL. 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, your fuel injectors will last for a long time.

Joe D'Auria's Auto
1401 BRACE RD
CHERRY HILL, NJ 08034
(56.427.9422
http://www.autorepaircherryhill.com

It Pays to Take Care of Your Transmission at Joe D'Auria's Auto

If you've been paying attention, you've noticed that vehicle engines are getting more and more powerful in CHERRY HILL. At the same time, they are getting better and better fuel economy. I've gotta tell 'ya, most of that's because of technological advances in transmissions. To get a better understanding of why that is, let's talk bicycles.

You've probably seen plenty of cyclists on CHERRY HILL roads. Perhaps you ride yourself. Then you know that a cyclist's cadence is the number of times per minute he or she pedals. The ideal pedal speed is the zone where they can most efficiently generate power over a sustained period of time. The experienced NJ cyclist uses her gears to keep her pedal speed in the ideal zone whether she's climbing a hill, cruising on a flat stretch or killing a downhill.

Think of it this way: if you have a 1-speed bike, you really have to pump hard to get up to speed. Your top speed is limited by how fast as you can pedal. And if you're climbing a steep NJ hill – forget about it.

Now let's add a couple of gears: one lower and another one higher. With the lower first gear, you can get up to your ideal pedal speed more quickly. When you shift to second, your pedal speed drops below ideal for a while as you work to get back to peak efficiency. Same thing happens when you shift to third, but now you can go much faster than you could with a 1-speed bike using the same effort. Add more gears and you can see that it's much easier to maintain ideal pedal speed. The result, quicker starts, better hill climbing, higher top speed and, most of all, a lot less fatigue for the CHERRY HILL rider.

Like a cyclist on a bike, every vehicle engine has an ideal engine speed called its power band. When an engine is running in that zone, it can make power very efficiently. It's the vehicle transmission's job to keep the engine in the power band over a wide range of operating conditions. Today 5 or 6 speed automatic transmissions are pretty much the minimum, and 7 and 8 speeds are fairly common in CHERRY HILL.

Obviously these sophisticated transmissions are very expensive. In fact, next to your vehicle engine, your transmission is the most expensive component in your vehicle, so it pays to take good care of it. Your manufacturer has a recommended service interval for changing your old, contaminated transmission fluid. Servicing your transmission on schedule at Joe D'Auria's Auto keeps it operating at its best and can prevent costly damage. Ask your friendly and knowledgeable Joe D'Auria's Auto advisor if it's time for transmission service. Come see why smart CHERRY HILL drivers trust their transmissions to Joe D'Auria's Auto.

Give us a call.

Joe D'Auria's Auto
1401 BRACE RD
CHERRY HILL, NJ 08034
(56.427.9422
http://www.autorepaircherryhill.com

Automotive Tips from Joe D'Auria's Auto: Timing Belt Overview

In your engine, valves over each combustion chamber open to allow fresh air in, close during the combustion event, and then other valves open to let out the exhaust. All of this happens over and over thousands of times a minute when you are driving around CHERRY HILL. The timing belt’s important job is to make sure that all of this happens as it should – at precisely the right time. If the timing is off, your engine won’t run efficiently or maybe not at all – so a good timing belt is important. If it should break, you could end up at Joe D'Auria's Auto with expensive engine damage.

Ask your friendly and professional Joe D'Auria's Auto service advisor when your timing belt is scheduled for replacement.

Give us a call.

Joe D'Auria's Auto
1401 BRACE RD
CHERRY HILL, NJ 08034
(56.427.9422
http://www.autorepaircherryhill.com

Joe D'Auria's Auto Tire Safety: Washington vs. Lincoln

Welcome to the Joe D'Auria's Auto automotive blog. Today, let's talk about the effect of tire wear.

Let's focus on stopping in wet CHERRY HILL conditions. In order for a tire to have good contact with the road, it has to move the water out of the way. If it can't move the water, the tire will actually ride on top of a thin film of water.

That's called hydroplaning. If it's really bad, CHERRY HILL drivers can actually spin out of control - endangering themselves and the other drivers around them. At best, you won't stop as fast.

So how does a tire move water? It has channels for water to flow through. Look at your vehicle tire and you'll see channels: channels that run around the tire and channels that flow across the tire. They're designed to direct water away from the tire so it can contact the road better.

And the deeper the channel, the more water it can move. A brand new Joe D'Auria's Auto tire has very deep channels and can easily move a lot of water. As the tire wears down, the channels become shallower and can move less water. When it wears down enough, it can seriously affect your ability to stop your vehicle on wet CHERRY HILL roads.

So that's why it's so important for CHERRY HILL drivers to replace their vehicle tires when they get worn. Consumer Reports and other advocate groups call for a standard of 3/32 of an inch and they have the studies to prove it.

At Joe D'Auria's Auto, we want our customers to know that the deeper recommended tread depth makes a big difference. Stopping distances are cut dramatically on wet CHERRY HILL streets. A safe stop from NJ speeds with 4/32 of an inch of tread would result in a crash with worn out tires.

There's an easy way to tell when a tire's worn to 4/32 of an inch.

Just insert a quarter into the tread. Put it in upside down. If the tread doesn't cover George Washington's hairline, it's time to replace your vehicle tires. With a Canadian quarter, the tread should cover the numbers in the year stamp.

Many CHERRY HILL residents have heard of this technique using a penny and Abe Lincoln's head - the old method. That measure gives you 2/32 of an inch – half the suggested amount. Of course, vehicle tires are a major purchase. Most of us in CHERRY HILL want to get as many miles out of them as we can. But there's a real safety trade-off. It's your choice.

Joe D'Auria's Auto
1401 BRACE RD
CHERRY HILL, NJ 08034
(56.427.9422
http://www.autorepaircherryhill.com

Water Pump

Your cooling system is very important. It circulates coolant through the radiator and your engine to protect your vehicle from overheating. There are five main components to the cooling system:

• the radiator
• the radiator cap
• the hoses
• the thermostat
• the water pump

The water pump's like the heart of your cooling system, circulating the fluid throughout your vehicle. It's a small pump that's driven by the engine; usually by belt, but sometimes by a chain or gear.

The water pump only operates when the engine's running. Water pump failure is pretty routine. We see it often at Joe D'Auria's Auto. Some start failing at around 40,000 miles/64,000 km, but most fail by 100,000 miles/160,000 km. Consult your owner's manual or friendly and knowledgeable service advisor at Joe D'Auria's Auto to see what's recommended.

Since a water pump either works or it doesn't, you need to change it when it fails. Water pumps fail in one of two ways: the bearings fail or they begin to leak. It's possible to have a leak from a cracked water pump, but it usually leaks at the gasket where it attaches to the engine.

So how can CHERRY HILL drivers tell when the water pump is failing? If you can hear a low-pitched grinding sound coming from the water pump, it's got a problem. If you can see coolant in that area, you've got a leak.

Some water pumps are driven off the timing belt. They might be under a plastic cover so you can't see the water pump. Look for coolant on the driveway. If you see some, have Joe D'Auria's Auto check it out.

Most timing belts need to be changed at 60,000 miles/97,000 km – some longer. It's a good idea to change your water pump at the same time if it's one of those that's driven off the timing belt. To start with, 90% of the work's already done with the timing belt change. And if you don't and develop a leak later, you'll have to change the belt again along with the water pump because the belt will have been contaminated by the leaking coolant.

Joe D'Auria's Auto can replace a failed water pump with a brand spankin' new one or with a rebuilt pump. Rebuilt will save you some money, but ask your service advisor at Joe D'Auria's Auto what he thinks. Don't feel too bad if your water pump gives out. They will all wear out eventually. We can get you back on the road and on with your life.

Joe D'Auria's Auto
1401 BRACE RD
CHERRY HILL, NJ 08034
(56.427.9422
http://www.autorepaircherryhill.com