Diesel Repair - Harold's Used Auto Parts Inc | Philadelphia, PA

AC Diagnostics for Your Vehicle

air conditioning in a car

At Harold's Used Auto Parts Inc in Philadelphia, we understand how important it is to have ice cold AC in your truck on a long, hot day. Whether you drive a Chevy, Ford, or Dodge diesel pickup, chances are you have a lot of cab to cool down, and a subpar AC just won’t cut it.

Are oil changes getting more expensive?

oil being put into the car

At Harold's Used Auto Parts Inc in Philadelphia, PA, it’s important to us that you see the value in the work we do. Over the course of the past decade, depending on what type of car, truck, or SUV you drive, it may seem like oil changes have gotten more expensive, and there’s a lot of differentiation in pricing at different locations. What’s going on?

Cheap Parts Don’t Cut It and Warranties Matter

car parts At Harold's Used Auto Parts Inc in Philadelphia, PA, we’re in the business of quality. Quality work, quality parts, and quality service keep a business going. Here is a quick rundown on why it’s important to install components that will perform reliably, and keep you taken care of in the event that they don’t.

Dash Warning Lights to Watch For!

battery warning light

It doesn't matter if you are driving a car or truck, jeep or SUV, a diesel 4x4 or a classic when those dash warning lights go off the first thing you do is think "how bad is it?" and "how much will it cost me?" followed quickly by "when was my last service visit?"!!  Driving your vehicle longer safely is all about getting it serviced based on what your vehicle manual recommends and these warning lights are alerting you to a situation that requires your attention. 

While not all warning lights are a sign that disaster is imminent, no warning indicator light should ever be ignored!

Diagnosing a Bad Brake Master Cylinder

mechanic working on brakes

Your brake master cylinder is an integral part of your brake system. When one fails, some odd symptoms may arise, and it may be difficult to diagnose. Here’s some information to help you decide if yours has gone bad. At Harold's Used Auto Parts Inc in Philadelphia, PA we want you to know what to look out for so that you can be safely on the road.

Diesel engines: the essentials

mechanic working on diesel engine

When you think about diesel engines, you probably think about large trucks and machinery, and maybe a few oddball cars over the years.  But how long has diesel really been around, and why is it used the way it is today? Harold's Used Auto Parts Inc in Philadelphia, PA has the answers you need to become more in-tune with your diesel truck and engine. 

Diesel Fuel Systems - How They Work, and How to Maintain Them

vehicle with smoke coming out the back

No matter what type of fleet vehicles or commercial trucks you maintain, the fuel system on your diesel is an integral part of keeping you on the road. Gas systems are pretty simple - there’s basically just a pump that pushes gasoline to the injectors. Diesels are a bit more complicated.

Diesel Tires - Which Ones are You Rolling With?

tires

There are a wide variety of tires available for your diesel truck, no matter what sort of pickup you drive. The climate, the terrain you drive on, and how you drive will determine which tire is best for you. Here’s a short list of common truck tire types.

Different Types of Automotive Headlights

headlight on on vehicle

Every car, truck, van, and SUV on the road today has headlights. However, you've probably noticed an increase in different types of headlights in more recent years - gone are the days where every vehicle on the road had the same bulb. Here is some information on headlights, from Harold's Used Auto Parts Inc in Philadelphia, PA.

Do I really need new oxygen sensors?

Oxygen Sensor

At Harold's Used Auto Parts Inc in Philadelphia, PA, our goal is to keep your car, truck, or SUV reliable and in great shape. To us, it’s important that we’re paying attention to both your needs and the needs of your vehicle. When it comes to oxygen sensors, sometimes it seems a bit nebulous on what they actually do and why they’re important; we’re here to clear things up for you.

Don't Forget a Coolant Flush!

hand screwing lid off of coolant

At Harold's Used Auto Parts Inc in Philadelphia, PA, it’s important to us that your car, truck, or SUV is ready for any condition. Coolant flushes are an important part of getting your vehicle ready for winter - here’s why.

How can you tell if your transmission is slipping?

transmission up close

A slipping transmission is never a good thing. What causes it, what forms does it take, and how do you know if yours is slipping? From Harold's Used Auto Parts Inc in Philadelphia, PA, here’s what you need to know.

Is "Remanufactured" Worth It?

mechanic checking list with car hood up

What does “remanufactured” mean, and is it something you want? At Harold's Used Auto Parts Inc in Philadelphia, PA, we strive for great service and a job well done. Part of that is equipping you with the knowledge you need to understand what’s going on when a repair is necessary on your car, truck or SUV. “Remanufactured” is a word that you’ll encounter in the automotive world. Many people perceive that to mean “used”, but that isn’t the case - here’s what you need to know.

Is it the Fuel Pump? Determining if Your Pump is Bad, and What to do About it

car at fuel pump While fuel pump issues are common, they often get misdiagnosed. What is your fuel pump, how do you know if yours is bad, and what should you do about it? At Harold's Used Auto Parts Inc in Philadelphia, PA, we are going to make sure that you are an informed driver so you know what to look for and what you should do about it.

Is Your Diesel Engine on it's Way Out?

Smoke coming out of muffler

Diesel engines are known for their durability, but even the best engine has to be replaced every once in a while. At Harold's Used Auto Parts Inc in Philadelphia, PA, we want you to be aware of signs that your engine is about to call it quits.

Keep Your Ball Joints in Working Order

ball joints

You’re Chevrolet, Ford, or Ram diesel pickup is a heavy-duty machine, designed to tackle all kinds of situations. The ball joints that connect your suspension to the rest of the truck are under a tremendous amount of strain, both on and off-road - it’s important to keep an eye on them, and make sure they’re in proper working order. Here’s how to gauge the condition of your ball joints, from the professionals at Harold's Used Auto Parts Inc in Philadelphia, PA.

Keeping Track of Maintenance - Why It’s So Important

mechanic working on car Keeping track of maintenance done on your fleet vehicles and commercial trucks is one of the most important aspects of fleet management. At Harold's Used Auto Parts Inc in Philadelphia, PA, we track maintenance and repairs for a number of reasons. Here’s why:

Keeping your diesel fleet trucks on the road longer.

diesel repair logo image

Keeping your fuel system maintained will prevent premature parts failure and poor running conditions. Here at Harold's Used Auto Parts Inc we have tips on the important aspects of diesel fuel system maintenance, to keep your diesel fleet trucks running smoothly - longer.

Air.Air in the system causes all kinds of issues, from hard starting, poor running conditions, or an engine that won’t run at all. If too much air gets in the system, the fuel pump won’t be able to deliver fuel, and the engine will stall, die, or fail to start.  Air enters the system via a leak or a bad seal - a deteriorated o-ring, worn component, faulty hose, or otherwise. Here we inspect your lines and connections to ensure they are in good shape and track down any leaks we notice air in the system.

Leaky Injectors Need Your Attention

Injector

At Harold's Used Auto Parts Inc in Philadelphia, PA, we see our fair share of damage that could’ve been prevented. Leaking injectors are one of the main ways a diesel engine can meet its demise - but the good news is, engine failure can be avoided, as long as the problem is taken care of.

Maintaining Tires on Your Diesel Truck

tire

Once you’ve got your new tires installed on your diesel truck, you’ll want to keep them in good shape. Tires aren’t difficult to maintain, and maintaining them correctly will dramatically increase their longevity. Inspection and maintenance are the two key components to making sure they last.

  • Jasper
  • Acdelco
  • ASE
  • BG Products
  • Cummins Diesel
  • Duramax Diesel
  • Fleet Services
  • Flowmaster
  • Magnaflow
  • Motorcraft Parts
  • Ford Power Stroke Diesel
  • RV Repair
  • Tires
  • Towing

Harold's Used Auto Parts Inc

5347 Whitby Ave
Philadelphia, PA 19143

location small (215) 472-1552
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Weekdays:   8:30 AM - 5:30 PM
Saturdays: 8:30 AM - 2:00 PM

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