Category Archives: Fuel System

Don't be Fuelish (Signs Fuel Pump is Failing)

A driver of a large SUV loaded with equipment was heading on a 7-hour work trip when he stopped at a gas station to refuel.  When he went to restart his SUV, it turned over but wouldn't catch.  Try as he might, he was never able to get it started again.  Of course there are many things that can cause those symptoms, but the next day he had his SUV towed to a service repair facility.  Using their test equipment, they were able to pinpoint the problem.  His fuel pump had failed.  The pump, which was located in the fuel tank, had to be replaced, and after awhile he was back on the road, delayed, but happy to be up and running again.  What had happened is that the pump was not strong enough to deliver adequate  fuel to his engine, vital to being able to start it.  It had delivered just enough pressure in the morning to get it started the first time, but it was on its last legs.  He had been having trouble starting his SUV in the days leadin ... read more

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Fuel System

Fuel Injection Keeps Getting Better for Ann Arbor Motorists

Ann Arbor 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 airand 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 ... read more

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Fuel System

Fuel Saving Tip: Auto Myths Around Ann Arbor

Fuel Saving Tip: Auto Myths Around Ann Arbor

With high fuel prices in Ann Arbor, Michigan, comes lots of gas saving advice. Some of it, like what you hear on   is great.  When you get one of those e-mails that's going around telling you how to save gas, try to think it through.Does it really make sense? Does it defy the laws of physics?Do some research on the internet or ask your Ann Arbor, Michigan, service advisor at Convenience Auto Service.There aren't any magic pills you can drop in your gas tank, and the government hasn't suppressed a device you can clamp on your fuel line to make your vehicle run on air. Not even in Ann Arbor!So next time you get one of those e-mails, check it out with an automotive professional. You'll get more bang for your buck with an oil change or an engine air filter replacement.We're here for you at Convenience Auto Service, so give us a call at 734-769-0170 for good honest advice about your vehicle. Convenience Auto Service ... read more

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Fuel System

Service to Improve Fuel Economy

The price of gas in Michigan has got people in Ann Arbor talking. It seems that Ann Arbor folks who need a bigger vehicle to carry family and gear, or provide four wheel drive, are hit especially hard. That is why we thought it would be good to review some things that anyone can do to improve fuel economy. First let's start with how we drive around Michigan. People in Ann Arbor may not realize that they can really save on gas by just changing a few driving habits. One of the biggest is jackrabbit starts - you know, flooring the gas as soon as the light turns green. That really wastes a lot of fuel. Building up your speed at a slower pace uses less fuel and is easier on your engine and drive train. And don't drive with one foot on the brake. That's also a drag on fuel economy, and it wears out your brakes faster, too. Another thing Ann Arbor drivers can do is drive more slowly - but only when it's safe. Sometimes on the freeway we driv ... read more

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Fuel System

Clean Fuel Equals Clean Performance for Ann Arbor Drivers

Hello, Ann Arbor residents. Let's talk fuel filters. Fuel filters clean the dirt, dust and debris out of your fuel. Both gasoline and diesel-powered engines have them. The fuel filter is located in the fuel line between the fuel tank and the engine.Ann Arbor auto owners don't need to filter their fuel because it has lots of grit in it; they need to filter it because it has some grit it in. Any dirt is bad for your engine. The cleaner the fuel, the better your vehicle engine will run.Over time, the small amounts of rust, dirt and contaminants in your fuel settle out inside the fuel tank. After about five years, this can amount to a quite a bit of sediment. This means that as your vehicle ages, your fuel filter has to work harder to screen your fuel: more sediment in your tank means more potential for grit in your fuel.The harder your fuel filter works, the more often it needs to be replaced. Check with your owner's manual to find out how often it should b ... read more

Categories:

Fuel System

Don't Be Fuelish

If you smell gasoline in your vehicle, pay attention to your nose. That's because it has an important message for you. Newer vehicles should never have a gasoline smell inside. One of the most dangerous conditions can come when your fuel line system has a leak or multiple leaks. Vehicles with fuel injectors are under pressure, meaning a crack or small hole in a fuel line can allow vaporized fuel to escape, sometimes around hot engine parts. Gasoline vapor and hot metal? You see the problem. One of the most common causes of a gasoline smell inside a vehicle is a fuel tank leak. The gas tank can rot or be punctured by road debris. A Convenience Auto Service technician can evaluate the condition of your fuel tank and suggest either repair or replacement. Fuel injectors can develop small leaks around their seals or O-rings. Those can deteriorate over time as the material they are made of gets old and less flexible. A technician can replace those parts. Modern vehicles contain something cal ... read more

Maintaining Your Diesel in Ann Arbor

Diesel engines have been used extensively in Europe and Asia for many years. They haven't been as common in the Ann Arbor area because of the high sulfur content in our diesel fuel. But the government is now mandating lower sulfur content and, as a result, we are going to see more Ann Arbor diesel-fueled vehicles on the road, especially in passenger cars and SUV's.Diesels are popular in Michigan because they get better fuel economy than gas-powered engines. They also last longer. Modern diesel engines are quiet and powerful. And if you associate diesel engines with black smoke, then you're not up with the times. That smoke is a thing of the past.Diesels don't produce any more pollutants than gasoline engines. The pollution standards for diesel-powered vehicles are as strict in Michigan as for other vehicles.Also, diesel engines can run on bio-diesel fuels as well as fossil fuels. Diesel fuel can be produced from vegetable oil or from ... read more

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Fuel System

Introduction to Diesels for Ann Arbor, Michigan

Something you're going to be hearing a lot about around Ann Arbor, Michigan, is diesel engines. We're not talking about semi-trucks and buses; we're talking about diesel engine cars, pick-ups and SUVs.Most people in Michigan are surprised to learn that around half the cars on the road in Europe have diesel engines. Nearly all import brands offer a range of diesel engines abroad – even the ultra-luxury brands like Mercedes and BMW. For the most part, these diesel engines haven't been available in Ann Arbor, Michigan. But that's about to change.In the past, North American diesel fuel has had a much higher sulfur content than European fuel. Recent environmental laws have required changes in diesel formulation and emissions standards here in Ann Arbor, Michigan, so we are now ready to start seeing more diesel options offered over the next few years.Why are so many Ann Arbor drivers interested in diesel engines? Well first off, diesel fuel is more energy dense. There ... read more

Categories:

Fuel System

Fuel Injector Cleaning at Convenience Auto Service

In very simple terms, a fuel injector is a valve that squirts fuel into your vehicle engine. Your engine control computer tells the fuel injector how much fuel to deliver as well as the precise time it should be delivered. Of course this happens thousands of times a minute in every single fuel-injected vehicle driving down Ann Arbor roads.Most fuel injectors for gas engines are known in the Ann Arbor automotive community as port fuel injectors because they deliver the fuel to a port just outside the cylinder. The fuel pump provides pressure needed to squirt the right amount of fuel into the engine. A few have recently introduced gas direct injection systems on some engines. They are now available at some Michigan dealerships. These systems inject the gas directly into the cylinders under very high pressure – many times the pressure of port injection systems. Although more complicated, dir ... read more

Categories:

Fuel System

How to Get Better Gas Mileage in Ann Arbor

There is no escaping it: things work better when you take care of them. Something most of us in Ann Arbor can relate to is our computers. You've probably noticed how they get slower and slower over time. It takes longer to start up and programs take forever to load. Eventually, many of us just get a new computer at our nearest Ann Arbor computer store. But computer experts know that there are things you can do to delay the need for a new computer purchase. You can run utilities that clean off temporary files and clean your memory registry. You can optimize your hard drive and a number of other things.What you're doing is maintaining your computer to make it efficient. It's the same thing with your vehicle. You maintain it to make it more efficient. It works the way it was designed to and that means it uses less fuel while you drive around Ann Arbor. And you save money.To help organize our discussion, let's think of things that rob us of fuel economy in tw ... read more

Categories:

Fuel System
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