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.

Unless you use your vehicle to tow every day for work, odds are you haven’t paid much attention to your truck, SUV, or crossover’s towing capacity. Maybe you’re looking to buy a boat for some summer fun or just need to rent a trailer to get your belongings from one dwelling to the next. Whatever the reason for pulling something behind your vehicle, it’s important to get a firm grasp on what exactly your towing capacity means. Understanding how each of the components in your vehicle contributes to your overall tow rating can keep you from putting undue stress on your rig and keep you and your family safe.

Wheel bearings are an often overlooked, but incredibly important component on your diesel truck; and when one begins to fail, other problems begin to arise. Harold's Used Auto Parts Inc in Philadelphia has the information you need to recognize a problem before it turns into a bigger one. Here’s what to look out for:

It’s likely you’ve been exposed to conflicting opinions about having your transmission fluid replaced. You may have heard that cars over a certain mileage should not have the transmission fluid flushed and replaced, because it could damage the transmission, or you may have had someone tell you the first thing you should do at any sign of trouble is have your transmission flushed. At Harold's Used Auto Parts Inc in Philadelphia, our expert mechanics have the answers you’re looking for.

Trucks aren’t like cars...your average personal vehicle usually holds about 5 quarts of oil, and you are supposed to change it every 3-5k miles. However, the same logic doesn’t apply to large trucks. At Harold's Used Auto Parts Inc in Philadelphia, we know how important proper oil changes and diagnostics are to keep your truck on the road, for hundreds of thousands of miles. Here’s what you need to know:

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 with that.

Tire pressure may seem innocuous enough, but at Harold's Used Auto Parts Inc in Philadelphia, we know how much of a difference correct tire pressure makes. Tire pressure checks are just one of many regular service items we check when you bring your truck in for servicing, but it’s one that’s more important than you might think.

Currently, the future of electric vehicles looks promising - though it won’t likely replace your Duramax, Powerstroke, or Cummins engine any time soon. Still, we don’t know what the immediate future holds. This battle was waged once before in the past, with combustion engines taking the throne over electric power. Here’s a brief history of electric automobiles, from Harold's Used Auto Parts Inc in Philadelphia, PA.