Your car’s fuel system works with the rest of the engine control system to deliver the best performance with the lowest emissions. Check your car’s fuel system regularly or immediately if you smell gas or suspect a problem.

What does it do? - The fuel system transfers fuel from the fuel tank and passes it through a fuel filter for straining before it arrives at the injectors. A pressure regulator controls fuel pressure to ensure good engine performance under a variety of speed and load conditions. Fuel injectors, when activated, spray a metered amount of fuel into the engine. Some vehicles use a return line system to return unused fuel back to the tank.

Balanced wheels are essential for a multitude of reasons, particularly on commercial trucks. At Harold's Used Auto Parts Inc in Philadelphia, PA, we have the precision equipment necessary to provide you with the best balance possible, keeping your truck smoothly and reliably on the road.

Obviously, your fuel delivery system is an extremely important aspect of the running condition of your truck. At Harold's Used Auto Parts Inc in Philadelphia, our expert team of mechanics can treat and clean your fuel delivery system, ensuring you get the most out of your fleet.

Fuel economy isn't far from the minds of vehicle owners everywhere. Why can certain cars zip along at close to 40 mpg while others are lucky to get anywhere near 20? As it turns out, there are as many factors that go into how well your ride does at the pumps! Here are the 10 factors that have the greatest impact on fuel consumption.

Is your diesel having issues starting up? Do you hear a knocking noise? Is there blue colored smoke coming from your engine? Don't ingore the signs, those could all be signs of engine failure. One of the leading issues that lead to diesel engine failure is fuel contamination. Fuel contamination comes in different forms, but always has the same result - engine trouble and fuel system failures. Here’s what you need to know about fuel contamination with diesel trucks, from Harold's Used Auto Parts Inc in Philadelphia, PA.

Obviously, the dirtier your fuel system is, the bigger the improvement you will see in performance and fuel economy after a fuel system cleaning. But it is important not to wait until your system is running poorly. If you do, by the time you get a cleaning, you’ve wasted hundreds of dollars in gas or even possibly damaged your fuel injectors and catalytic converter.

Good gas mileage is something we all want. In fact, many drivers purchase certain cars solely for gas mileage, and almost all of us at least take it into consideration when purchasing a vehicle. While it is true that gas mileage is by and large determined simply by the type of car, there are actually a variety of things you can do to increase the gas mileage of any automobile. The tips Harold's Used Auto Parts Inc in Philadelphia want to provide you here are simple and effective steps you can take to increase your gas mileage, often more considerably than you think.

At Harold's Used Auto Parts Inc in Philadelphia, PA, we are here to maintain and repair your vehicle. We’re also here to help you keep your car, truck, or SUV in good shape and running strong. “Bad gas” is often cited as the cause for a variety of issues - but what does that mean, and what can you do?

Most commercial diesel engines these days are turbocharged. Turbos dramatically increase power and efficiency, particularly on diesel engines, which makes them a must-have item on engines that rely heavily on both. However, sometimes issues arise in turbo systems; at Harold's Used Auto Parts Inc in Philadelphia, PA, we can fix that.

It’s easier than ever to keep your fleet running smoothly for thousands of miles. If a vehicle has less than 50,000 miles on it today, chances are it still has 75 percent of its driving life ahead of it. That’s good news if you’re a company managing a fleet of vehicles. It wasn’t that long ago that hitting the 100,000-mile mark on the odometer was a major milestone. Today, vehicles are built to last. With the proper maintenance and attention, there’s no reason you shouldn’t expect to see that 50,000-mile reading on the odometer one day roll right past 200,000 and keep ongoing. Here at Harold's Used Auto Parts Inc, we're going to give you some tips on how to make that happen!

Keeping your fuel system maintained will prevent premature parts failure and poor running conditions. Here are some important aspects of diesel fuel system maintenance, to keep your fleet running smoothly. While your system and components should typically be serviced by a professional technician, there are some things you can be conscious of that will go a long way toward keeping your engine in good shape.

Fuel Systems are particularly important on diesel trucks, whether you drive a Ford, Chevrolet, or Dodge pickup. At Harold's Used Auto Parts Inc in Philadelphia, PA, fuel system maintenance and repair is a service we prioritize, since we know how essential a reliable fuel system is.

At Harold's Used Auto Parts Inc in Philadelphia, we understand how important safety is in the world of truck driving. The stakes are higher in a big truck; potential for damage is obviously far greater, to you, your cargo, and other people on the road. Here are some easy tips that go a long way.

It’s no secret, commercial truck tires are expensive. The good news is, if one of your tires is experiencing issues, Harold's Used Auto Parts Inc in Philadelphia, PA has you covered. We want to make sure your fleet stays fully operational and you on the road! Here are some things to keep your eye on when it comes to your tires and tips to keep your tires lasting.

At Harold's Used Auto Parts Inc in Philadelphia, we know that few problems are simultaneously as simple and confusing as a bad ground connection on your car, truck, or SUV. Here’s a look at some symptoms of a bad ground, and what you can do to correct it.

Fuel injection is one of the greatest innovations in automotive technology to date. From Harold's Used Auto Parts Inc in Philadelphia, PA, here’s a little more information on the fuel injector.

While fleet trucks and vehicles tend to persist as some of the more simplistic vehicles on the road, the modernization and computerization of the automotive world has not left them untouched. These days, everything is equipped with computer systems, sensors, modules, and more. At Harold's Used Auto Parts Inc in Philadelphia, PA, our professional technicians have the knowledge, equipment, and ability necessary to provide the accurate and vital diagnostics required to keep your fleet on the road.