San Diego Auto Repair

If you aren’t currently using synthetic oil in your vehicle, maybe now’s the time to consider it. Need more information? Well, synthetic motor oil is a substitute for petroleum based oil. Synthetic oil doesn’t gel or gum-up like petroleum based oil and it doesn’t vaporize as easily. It protects better in severe driving conditions like stop and go driving around San Diego, as well as in very hot or very cold conditions. More and more new vehicles are being delivered with full synthetic motor oil; with the recommendation to use synthetic for the life of the vehicle. Why is this? Synthetic motor oil maximizes engine power and fuel economy. To see why; we’d need a microscope, so we’ll have to settle for using our imaginations. The molecules of conventional motor oil are long hydrocarbon chains. Synthetic motor oil, on the other hand, has uniform, round molecules. Which is more slippery, a pile of pencils or a pile of marbles? Synthetic motor oil lubricates better because there’s less fric ... read more

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 timi ... read more

Let's talk about transmission service. It can be easy to forget about getting your transmission serviced because it doesn't need it very often. It's easy to remember to change the engine oil - you know, every 3,000 miles or 5,000 kilometers. But proper transmission servicing keeps your car running smoothly and helps you avoid costly repairs down the road. The transmission undergoes a lot of stress. The grit you see in used transmission fluid is actually bits of metal that wear off the gears in the transmission. In addition to that, the transmission operates at very high temperatures. Usually it's 100 to 150 degrees higher than engine temperatures. Those high temperatures eventually cause the transmission fluid to start to break down and loose efficiency. As the fluid gets older, it gets gritty and doesn't lubricate and cool the transmission as well - leading to even more wear. The fluid can actually get sludgy and plug up the maze of fluid passages inside the transmission. At best, yo ... read more

Did you know that today's cars carry more computer power than the Apollo 121 Lunar Module that landed on the moon in 1969? New cars have as many as 12 networked computers and over five miles (eight kilometers) of wiring. In fact, for the last decade or so, computers have been controlling about 85% of your vehicle's functions. Cars have sensors for manifold air temperature, coolant temperature, manifold air pressure, airflow, throttle position, vehicle speed and oxygen content. All of this electronic wizardry is pretty complicated. So how do you know when there is a problem? It's simple - the Check Engine light comes on. The computer monitors all the sensors and uses that information to decide what to adjust such as the fuel mix, spark timing and idle speed. In addition, the computer monitors its own circuits. When it finds a fault, it turns on the Check Engine light and stores a trouble code in the computer. It can be pretty disturbing when the Check Engine light comes on. We wonder j ... read more

If the fuel system in your sedan is dirty, you will be wasting gas and losing performance as you drive around San Diego CA. After all, a clean fuel system makes a happy engine! Unless you drive a vintage car, you have fuel injectors. They need to be properly maintained. That is why your owner’s manual has a schedule for cleaning your fuel injectors and other parts of your fuel system. A clean fuel system is a functional fuel system. Your service technician at Convoy has the tools and chemicals to do the job right. We use a process that gives your car a deep, professional fuel system cleaning. The particles, gum and varnish that build up in your fuel system are removed so that it can run cleanly and efficiently. After a professional fuel system cleaning, you’ll notice more power, better gas mileage and reduced exhaust emissions. AutoNetTV strongly recommends you follow your manufacturer’s fuel system cleaning service recommendation ... read more

A lot of our viewers have asked whether or not they should use their severe service requirements maintenance schedule, which is listed in their car owners' manual. It can be confusing. Let's clear the air on this subject. Cricket Killingsworth is from QMI/Heartland, a manufacturer of automotive products and fluids. She's been in the automotive business for 20 years and is a speaker, a trainer, and a writer. Cricket says there's so much confusion on this topic because, "Most owners' manuals actually have two maintenance schedules. Sometimes these are called 'regular service' and 'severe service'. Sometimes they're simply called Schedule 1 and Schedule 2. A severe service schedule recommends that things like a car oil change, car air filter replacement, and transmission service be done more often: either in fewer miles or in less time ... read more

North Americans love their cars. And nothing goes with cars better than the road trip. Freedom from daily schedules, new sights and the open road – it’s great! But there’s nothing like car trouble to bring the fun to a grinding halt. Now you can’t always avoid problems, but you can take steps to reduce the probability of getting sidelined on your trip. The first step is to look at your trip plan from your vehicle’s perspective. What kind of roads will you be traveling – winding byways or super-highways? Mountains or plains? What weather conditions are you likely to encounter? How many miles will you travel? How much weight will you be hauling – passengers and luggage? Lugging a trailer or roof top carrier? Will it be dusty? Armed with the answers to these questions, you can start a trip inspection to help you prepare your San Diego vehicle for your big adventure. A lot of our San Diego customers prefer to go through this exercise with an automotive service advisor at Convoy Auto Repai ... read more

Your car is important to you and keeping it running is vital to your lifestyle. That’s why you should have it serviced regularly. And even though it may just be routine car maintenance, you want it done right. It’s also very important to us at Convoy to keep you happy and on the road. You might be surprised at the amount of money service centers spend every year on technician training to make sure their technicians are properly trained. Convoy offers a variety of car care services to many kinds of vehicles. We need to be up to date on the latest techniques and parts so that we can care for your car properly. Convoy Auto Repair subscribes to data services that list the high quality parts and fluids recommended by your manufacturer. And each service has a checklist of standard procedures. Technicians follow these procedures so we can safely deliver a consistent level of high-quality service. Some services require the use of specialized equipment. Technician ... read more

What is a cabin air filter? Is it: A filter for a house in the middle of the woods? A fresh, piney scent? A filter for the passenger compartment of your car? Clever you, it's 3. A cabin car 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 in CA 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 ... read more

The last new car sold with a carburetor in North America rolled out of the dealership in 1990. Since then, all new vehicles have had fuel injectors. In very simple terms, a fuel injector is a valve that squirts fuel into your engine. Your engine control computer tells the fuel injector how much gas to deliver as well as the precise time it should be delivered. Of course this happens thousands of times a minute. Fuel injection is a much more precise way of delivering fuel than carburetors. That translates into better fuel economy and power. Virtually all fuel injectors for gas engines are known as port fuel injectors because they deliver the fuel to a port just outside the cylinder. Port fuel injectors operate at about 40 to 80 pounds per square inch of pressure. A few auto makers have introduced gas direct injection systems on some engines recently. These systems inject the gas directly into the cylinders under very high pressure - hundreds of times the pressure of port injection syst ... read more