Vehicle Maintenance

  • 3 Minutes a Month Can Save Your Transmission

    dipstick on car

    When it comes to transmissions, your fluid level is essential. Too much or too little fluid can affect pressure, cooling abilities, and lubrication. In order to best care for your vehicle, it's important to know what to look for, so from our shop here at Harold's Used Auto Parts Inc here are a few tips. 

  • All Your Fuel System Questions Answered

    fuel being put into vehicle

    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.

  • Are You Dealing With Leaky Hydraulics?

    clutch of vehicle and close up of floorboard

    Does your clutch go flat, rendering your car useless until you fill the reservoir back up? Are you tired of the spongy feeling in your pedal, and the mess on your driveway? At Harold's Used Auto Parts Inc in Philadelphia, PA, we can fix that for you.

  • Are You In Need Of New Brake Pads?

    brake pad

    Do you need new brake pads? Most of the time, if you think you do, the answer is yes. While a lot of auto parts stores sell brake pads with lifetime warranties, don’t be misled...brake pads will still wear down.

  • Are You Maintaining Your Fleet?

    oil being poured into car

    If you own or operate a fleet or commercial truck, you know how quickly miles rack up and oil changes are needed. At Harold's Used Auto Parts Inc in Philadelphia, PA, our main goal is to keep your trucks on the road - a huge part of that is changing your oil on time.

  • Benefits of Auxiliary Transmission Coolers - Does Your Vehicle Need One?

    transmission cooler

    Auxiliary transmission coolers are one of many ways the aftermarket can improve the quality and durability of your vehicle. From Harold's Used Auto Parts Inc in Philadelphia, PA, here’s some information concerning auxiliary coolers, why you might need one, and what it can do for you.

  • Benefits of Treating a Fuel System

    man putting gas in a vehicle at the pump

    Like anything else on your vehicle, keeping various systems clean and in good shape is essential to long life and reliability. Your fuel system is especially important - parts are expensive, problems can be difficult to diagnose, and it doesn’t take much contamination to cause a huge issue. It’s much easier to keep your fuel system clean than it is to clean a dirty or problematic system. Performing regular fuel treatment can prove very beneficial to the life of your vehicle.

  • Brakes - how do they work?

    Brakes

    At Harold's Used Auto Parts Inc in Philadelphia, we know that in order to keep your car in good shape, it helps to know how it works. Here’s a quick rundown of a system that’s very important, but you take for granted until there’s a problem; your brakes.

  • Check Engine Light On? We Can Help

    check engine light on in dash

    Is your check engine light on? Whether you can tell a difference in the way your car, truck, or SUV is running, your car is trying to tell you something. At Harold's Used Auto Parts Inc in Philadelphia, PA, we can help.

  • Check Engine Light Staring You in the Eye? Here's Why You Should Pay Attention

    Check engine light on the dash

    There’s a huge percentage of vehicle on the road, right now, with the check engine light illuminated. Many of them have had it on for years, even. Frequently, a check engine light will illuminate, but pose no immediate problems, so people just get used to it and learn to live with it being on. However, Harold's Used Auto Parts Inc in Philadelphia, PA would like you to know that it’s worth having it looked into. Typically, the problem can be diagnosed by simply plugging your car into our computer; the vehicle gives us a code, and we know what the problem is immediately.

  • Checking Your Fluid Levels - How 3 Minutes Once A Month Can Save Your Vehicle

    At Harold's Used Auto Parts Inc in Philadelphia, PA, we know how easy it is to overlook vehicle maintenance when everything is working as it should - we also know firsthand the toll neglected maintenance takes on a vehicle. Here’s an easy thing you can do yourself, that might save you an engine, transmission, or avoid numerous other problems.

  • Checking Your Fluid Levels - How 3 Minutes Once A Month Can Save Your Vehicle

    fluid being poured into vehicleIf you own or operate a fleet or commercial truck, it’s important you know the basics of vehicle maintenance. Checking your fluids is the easiest and most effective way to ensure your vehicles stay on the road and going strong. Here’s what you need to know, from Harold's Used Auto Parts Inc in Philadelphia, PA.
  • Choosing The Right Repair Shop

    At Harold's Used Auto Parts Inc in Philadelphia, PA, we work hard to be the maintenance and repair shop your fleet needs.

  • Coolant: When to Check It and When to Change It

    Coolant in a vehicle

    Coolant is vital to your engine. Without the right type, amount, and proper circulation of coolant, your engine won’t last long. How do you know when it’s time to check it or replace it? Harold's Used Auto Parts Inc in Philadelphia, PA has the answers.

  • Disconnecting a Battery from A Vehicle

    man taking battery out of car

    If you’re ever in a situation where you must remove the battery from your vehicle, it’s important to know what you’re doing. It seems pretty straight forward, and it is. However, there are some important things to remember when disconnecting the battery in your car, truck, or SUV. Here are some tips on disconnecting a car battery, from Harold's Used Auto Parts Inc in Philadelphia, PA.

  • Do You Know How Your AC Works?

    hand on car air conditioning vent

    When you get in your car, truck, SUV, or minivan to drive and the A/C does not work what could be wrong? Here at Harold's Used Auto Parts Inc, we have some simple answers to help you understand how your vehicle A/C system works. The first question we are asked is "Why isn't my air conditioner blowing cold air?" Let's talk about what could be happening. 

  • Don't Neglect These Signs, You May Need New Brakes

    braking

    Your brakes have a lot to do with how your car drives. Brakes are a frequently neglected item on a lot of people’s checklist, and many drivers on the road have subpar brakes and don’t even know it. A car that brakes well and brakes correctly are just as important as acceleration, handling, or any other aspect of a vehicle’s drivability. A car with brake issues has the potential to be a far more enjoyable ride when fixed.

  • Extending the Life of Your Engine

    Mechanic taking apart of an engine out from under the hood

    An engine can last anywhere from 50 to 500,000 miles depending mostly on how well you maintain it. While some engines are certainly more reliable than others, all of them depend on maintenance to fulfill their greatest potential. Harold's Used Auto Parts Inc in Philadelphia, PA has provided for you some of the determining factors of engine lifespan, to help you make sure your engine lasts as long as it possibly can.

  • Fuel System Cleaning - What's In It For Me?

    fuel tank on dash board lit up on E

    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.

  • Have You Changed Your Oil Lately?

    Oil being poured into a diesel vehicle

    If you drive a Dodge, Chevy, or Ford diesel pickup, you know the amount of hard work your truck puts in. You may also be aware that diesels run a little dirtier than your average gas burner. At Harold's Used Auto Parts Inc in Philadelphia, PA, our goal is to keep your Duramax, Cummins, or Powerstroke truck on the road for many miles to come. A huge part of that is keeping your oil maintained.

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  • 12 Month Warranty
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5347 Whitby Ave
        Philadelphia, PA

(215) 472-1552
Email the Shop
MON-FRI | 8:30 AM - 5:30 PM
SAT | 8:30 AM - 2:00 PM
SUN | CLOSED
Closed every third Saturday of the month