Automotive News & Information - Harold's Used Auto Parts, Inc.

The catalytic converter is an essential piece of equipment on any modern vehicle. At Harold's Used Auto Parts Inc in Philadelphia, PA, our team of professional technicians are able to diagnose and repair any catalytic converter issues your Chevrolet, Dodge, or Ford diesel pickup may be experiencing.

If you drive a vehicle with a manual transmission, you know that clutch replacement can be an expensive and time-consuming job. Harold's Used Auto Parts Inc in Philadelphia has some tips to keep your clutch replacements as infrequent as possible.

If there’s an issue with your diesel fuel system, the most important thing to remember is to fix it sooner rather than later. With gas engines, you can often power through a fuel issue for quite some time - they’re irritating, but not often permanently damaging. Diesel systems are a little more important, and parts rely heavily on one another to avoid damage and keep working properly, as well as maintenance and repair from professional technicians.

No matter what type of car, truck, or SUV you drive, the professionals at Harold's Used Auto Parts Inc in Philadelphia, PA have you covered. Our technicians are well equipped with the tools and knowledge necessary to fix or maintain all makes and models, including diesels.

Have you always wondered what a spark plug does? Our team here at Harold's Used Auto Parts Inc is here to help you out. It's simple in theory but does quite a lot of work for such a small piece of equipment. Your spark plug forces electricity to arc across a gap like a bolt of lightning at high voltage and fits into your engine's cylinder head, where it “sparks” to ignite the fuel and creates combustion within your engine. Without it, you wouldn't be able to drive your car or truck.

At Harold's Used Auto Parts Inc in Philadelphia, PA, our mechanics have diagnosed and repaired every transmission problem in the book. We’d like to pass some of our knowledge along to you, in order to help you understand your transmission a little better. Here, we discuss the synchronizers in your manual transmission, and how to know if one of yours is faulty.

Brake pads are important - you don’t need them to go, but you do need them to stop. At Harold's Used Auto Parts Inc in Philadelphia, PA, we like to keep your vehicle stopping exactly as it should - it’s less dangerous, and it keeps insurance premiums low. So, how do you know if your brake pads are going bad? How do they work? What even are they? We’ve got the answers!

If you drive a lightweight car, truck, or SUV, the torque converter you have installed is probably just fine. For those of you with more heavy-duty applications, like high horsepower setups or towing rigs, the stock converter may not be enough. At Harold's Used Auto Parts Inc in Philadelphia, PA, we can help you determine if your torque converter is right for the job you need to be done.