Diesel Repair

  • 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 Melvin's Auto & Truck Repair in St Augustine, FL, 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.

  • 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 Melvin's Auto & Truck Repair in St Augustine, FL, here’s what you need to know.

  • How Does Your Turbo Work?

    line of diesel trucks

    Your turbocharger will work in essentially the same way, whether you drive a Powerstroke, Cummins, or Duramax diesel pickup. While there are differences in designs and applications, turbos haven’t changed all that much over the past century. Now that you know what one is made of, we’ll look at how it works.

  • How To Increase Your Performance When Taking Your Diesel Off-Road Or Towing!

    Truck Off Road, driving through mud

    Is your diesel used for off-roading or towing? Are you looking for an increase in performance for your Cummins, Powerstroke, or Duramax truck? If so, a billet torque converter may be an option you’d like to consider. Here’s what you need to know about billet torque converters, from Melvin's Auto & Truck Repair in St Augustine, FL.

  • How To Keep Your Diesel From Breaking Down.

    Differential being worked on

    Chevrolet, Ford and Ram diesel pickups are well-built machines. Still, sometimes they break down. Here’s what you can do to prevent that from happening and reduce the cost of a more expensive repair. At Melvin's Auto & Truck Repair in St Augustine, FL our diesel customers are important to us and we want your diesel to last you.

  • How to Maintain Your Engine

    parked truck

    The fuel system is an integral aspect of any combustion engine, but it’s particularly important on diesel trucks. Your Ford, Dodge, or Chevrolet pickup requires a perfectly functioning fuel system, devoid of buildup, leaks, and debris, to provide you with the most powerful and efficient engine performance possible. At Melvin's Auto & Truck Repair in St Augustine, FL, we understand that fuel system flushing is an essential process in maintaining a properly functioning engine.

  • How to maintain your turbocharger correctly.

    Turbo Charger at Jasper Engines Factory

    The turbocharger on your diesel is a precision-engineered component that requires proper maintenance to ensure it meets your needs and performs every time you get behind the wheel - no matter what the task is.  Here at Melvin's Auto & Truck Repair in St Augustine, FL, our team is the perfect choice to ensure that the turbocharger on your diesel is always working at optimum capacity with no problems as our diesel technicians are simply the best plus when you are running tens or even hundreds of thousands of RPMs, keeping everything in good shape is absolutely necessary. Fortunately, we have exactly what you need!

  • Hydraulically Actuated Electronic Unit Injection (HEUI) Systems - How it Works

    diesel truck

    What is an HEUI System you may ask? When it was first introduced, HEUI systems revolutionized diesel technology in groundbreaking ways. Though other technologies have taken the forefront since its development, HEUI systems are still extremely common throughout the diesel industry. From our team here at Melvin's Auto & Truck Repair in St Augustine, FL, here’s a quick look at how these systems work, and what the advantages are of having one.

  • Injector Solutions Every Diesel Owner Needs To Know

    Injectors are a primary component on any diesel engine, old or new. Whether you drive a Chevrolet, Ford, or Dodge pickup, clean and fully operational injectors are an absolutely essential aspect of maintaining an efficient and powerful engine. At Melvin's Auto & Truck Repair in St Augustine, FL, we offer a variety of injector solutions, from cleaning them, to diagnosing problematic injectors, to replacing them.

  • Is "Remanufactured" Worth It?

    mechanic checking list with car hood up

    What does “remanufactured” mean, and is it something you want? At Melvin's Auto & Truck Repair in St Augustine, FL, 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 Okay to Idle A Diesel?

    You’ve likely heard that diesel engines are ok to idle indefinitely, and that it’s even good for them. Where does this logic come from, and is it true? Melvin's Auto & Truck Repair in St Augustine, FL has the answers.

  • 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 Melvin's Auto & Truck Repair in St Augustine, FL, 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 It Time to Buy New, or Fix What You Have?

    Whether you drive a Chevrolet, Ford, or Dodge diesel pickup, there will come a day when it’s time to ask the question - has the time come to get a new truck? Melvin's Auto & Truck Repair in St Augustine, FL is here to help you decide.

  • Is It Time To Replace Your Thermostat On Your Diesel Truck?

    Thermostat for a diesel truck

    You trust your diesel to get you to point A to point B every time you get into your truck. However in return, if your truck starts to act differently take the time to pause and listen to what your truck is trying to tell you. Issues can be as small as a thermostat going out, which if fixed now could reduce a more expensive repair down the road! The thermostat in your truck is a small, simple, and critical component. At Melvin's Auto & Truck Repair in St Augustine, thermostat replacements are just one of many repairs we tackle.

  • Is That Shaking a Driveshaft Issue?

    driveshaft

    Whatever type of truck you run in your fleet, they all have a driveshaft that connects the transmission to the differential, transferring power to the wheels. At Melvin's Auto & Truck Repair in St Augustine, FL, we specialize in diesel truck and fleet vehicle maintenance and repair, including precision driveshaft care.

  • Is Your Airbag Service Light On? Why You Shouldn't Ignore it!

    Every time you get into your diesel truck you probably forget all the safety features your vehicle has for you in case of an accident. Airbags are one of the greatest features of modern diesel trucks, though they aren’t often considered until you need them. From Melvin's Auto & Truck Repair in St Augustine, FL, here’s a nod to one of the better vehicle advancements of our time and why it's important not to ignore warning signs.

  • 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 Melvin's Auto & Truck Repair in St Augustine, FL, we want you to be aware of signs that your engine is about to call it quits.

  • Is Your Diesel's Injection Pump Having Issues?

    injection pump

    Whether you drive a Chevy, Ford, or Ram diesel pickup, your engine is likely equipped with an injection pump. While injection pumps have been gradually phased out on modern engines, they are still an integral part of most diesel engine operations. At Melvin's Auto & Truck Repair in St Augustine, FL, we specialize in maintenance and repair on Cummins, Duramax, and Powerstroke engines, including injection pumps.

  • Is Your Truck Ready For An Engine Replacement?

    Your truck was built for work. Whether you drive a Ram, Chevy, or Ford diesel pickup, your truck was designed to endure, day in and day out. Nonetheless, eventually, there will come a time where your engine needs major repair - and you’ll have to make a decision on what to do next. At Melvin's Auto & Truck Repair in St Augustine, FL, we’re here to help.

  • 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 Melvin's Auto & Truck Repair in St Augustine, FL.

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Melvin's Auto & Truck Repair

1625 Old Moultrie Rd
St Augustine, FL 32084
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