COVID-19 Coronavirus Update

As you are undoubtedly aware, social safety measures have been put into place due to the outbreak of the COVID-19 Coronavirus. You can continue to count on us to have the parts you need, in stock, and ready to ship today! If you have any questions or concerns, please contact us at 800.654.8493 or at


Dear Valued Customers,

As the COVID-19 (Coronavirus) crisis continues to unfold worldwide, I want to personally share with you the steps we are taking here at Dieselogic. The Coronavirus outbreak puts us in uncharted waters, and we continue to monitor the latest information in order to make the best decisions.  The health and welfare of our employees and their families are our main priorities during this period. Equally important is serving our customers.  We are open for business, have all our healthy employees reporting for work, and we remain in contact with our supply base to manage the flow of material.

We are carefully monitoring the COVID-19 situation and following guidance from leading health authorities (the World Health Organization, the European Centre for Disease Prevention and Control, and the U.S. Center for Disease Control and Prevention). Please click here for additional information. Recognizing that plans may change during this time, you can rest assured that the Dieselogic team is committed to continuing to provide you with the service and support you need.

We have always taken the cleanliness of our production facilities very seriously, and we know that vigilance is more important now than ever. In addition to an accelerated cleaning and disinfecting protocol, Dieselogic has HEPA filtration in our ventilation system and we have always added a constant 1200 CFM fresh air 24/7 a day to accomplish several primary indoor air quality goals:

  • Pressurizes our building keeping dust to a minimum for cleanroom assembly of our quality award-winning fiber optic tested diesel injectors.
  • Constant fresh air pumped into our building allows us to have a consistent venting of fumes from our remanufacturing process.
  • Increases indoor air quality by diluting polluted or stale indoor air keeping our employees safe from chemicals used in our remanufacturing process.
  • OSHA tested our plant air quality and quoted it “as clean as a hospital”.

Please click here for a 2-minute “look” into our company.

The health and safety of our employees, customers, and communities are paramount. We are encouraging our employees to follow recommended best practices including frequent hand washing and staying home if they are feeling ill.

We ask that no outside business representatives visit our facilities during this time.  We will use web-based meeting applications for any group meetings that need to be conducted.

Through it all, we remain committed to maintaining our business operations and have established procedures in place to ensure services and support stay up and running. We will continue to monitor the COVID-19 situation as it develops and provide you with additional updates as appropriate.

Thank you for your continued trust in Dieselogic. Today and always, we are committed to fulfilling all your diesel fuel injection requirements.


Omar Cueto

President/CEO, Dieselogic

How To Test Your Fuel Injectors In Just 30 Minutes

how to change injectors

The function of your diesel fuel injection system relies on careful maintenance. Fortunately, much of this maintenance you can do at home. By testing your fuel injectors at home, you can determine when you need to replace them. Then, if you know how to change injectors, you can install these replacements at home as well. Follow these steps to test your injectors for function and condition.

Step 1: Gather your tools.
To test your injectors, you will need only a few tools that you likely already have in your home. First, you will need to find proper safety gear, including gloves and eye protection. For your actual mechanical tools, you will need a foot-long metal rod or a screwdriver. You will also need an automotive test light.

Step 2: Use your senses.
Start your car’s engine. Take your metal rod or screwdriver and place it on a fuel injector. Carefully lean your head close enough to the rod so that you can hear its vibrations, but not so close that you are near the engine. If the injectors are activating, you should be able to hear a clicking sound.

Step 3: Switch on your battery.
Next, you need to check the system’s electrical connection. Switch the engine off so that it is not running but the battery is still activated. The radio, lights, and other electronic features should be active but not the engine.

Step 4: Use a test light.
Connect the clip of your test light to the negative terminal of your battery. Then, take the pointed tip of the test light and touch it to the small bit of exposed wire. The testing light should light up when it touches the wire. Repeat this on every injector.

Step 5: Decide on a next step.
Once you determine whether your injectors are functioning or not, decide if you are going to repair or replace them. If you know how to change injectors, perform this process at home. If not, bring them to your mechanic.

Remember that there any many different factors that can cause injectors to fail. For example, two major deposit buildups, external and internal injector deposits, often cause them to not function. Try to identify the underlying issue so you can prevent a failure in the future.

Remanufactured vs. Refurbished Diesel Fuel Injectors: What Truck Owners Should Know

When it comes to taking care of your vehicle, choosing the right parts is key. And that is especially important when it comes to fuel delivery. For diesel trucks, it’s all about the fuel injectors. By installing the best injectors, your fuel can be delivered at the right moment with full efficiency.

For many diesel truck owners looking to select the best injectors, remanufactured and refurbished models are available options. While they are an affordable alternative to new models, they may not perform exactly the same.

So, which should you choose for your truck? By understanding the key differences between these two types of injectors, you can then select which is best for your car’s needs.

Your first options are remanufactured diesel injectors. These models are actually returned to their original equipment manufacturer (OEM) performance. And to add to the perks, these models often come with a warranty that is either the same or better than new products. You can also rest assured that you are getting a quality value, since 100% of the parts are examined and pre-qualified.

On the other hand, truck owners can also purchase refurbished fuel injectors. These are essentially secondhand products, as they are taken from a high milage engine. Unlike remanufactured models, they are not inspected or repaired. This is because they are refurbished to look like new, but the parts may not be redone. These products generally come with a one-year warranty.

Ultimately, many truck owners turn to remanufactured models, and it’s no question why. The automotive, mining, and aerospace industries make up over 50% of remanufacturing. And on top of that, the United States is the largest consumer exporter of remanufactured goods in the world. In fact, it added up to a $43 billion industry in 2011, supporting at least 180,000 jobs.

Not only are you supporting jobs by choosing remanufactured car parts, but you are also caring for the environment. These products can save millions of tons of natural resources and stop landfills from piling up. With these auto parts having multiple lives, the global remanufacturing industry is estimated to hit $140 billion by 2020.

By purchasing remanufactured injectors, you can be part of this growth and environmental impact.

Common Fuel Injector Problems Specific To Duramax Models

duramax performance injectors

Every model of diesel fuel injectors has its own set of problems, and Duramax injectors are no exception. Even the most updated and efficient models can have issues, so it’s important for owners to know when their system needs repair. The following are some of the most common problems that shops notice when servicing this type of injector system. By being aware of these issues, you can get your car fixed when you need to and keep your Duramax performance injectors running like new.

    • Overheating: Earlier Duramax models most often experience overheating, particularly during warmer times of the year. In injection systems, this issue is usually caused by a faulty fan clutch, so fixing that part usually does the trick. But keep in mind that problems with the rest of the system can also cause overheating, so you should take your vehicle to a professional.


    • Head Gasket Damage: Duramax gaskets have multiple layers. When the gasket is performing well, the layers separate to release coolant and exhaust. If they don’t, these substances can get caught up and cause problems. Your mechanic will inspect the radiator hose for clogs as a clue of head gasket issues.


    • Fuel Line Issues: This type of injection system tends to be vulnerable to fuel line issues. This includes fuel starvation, in which fuel is not able to properly enter the line. Sometimes air gets into the fuel lines as well. When small cracks form in the line, you might experience these problems.


    • Glow Plug Failure: When the glow plug system actually functions faster than the glow plug, the tip of the plug might break. This is less of a risk in newer models since GM actually fixed the problem. But if you have a 2006 model, you should watch out for this. It could cause serious engine damage.


  • Water Pump Leaks: When the water pump is damaged, water actually leaks underneath. This can create quite a mess and should be changed as soon as possible. Be sure to bring it to a professional for this, as it can be difficult to remove the surrounding parts.

Duramax performance injectors are one of the most popular injection models. Since diesel fuel is 25% to 30% more energy rich than gasoline, owners should choose to maintain their systems to the best of their ability. This will keep the fuel running smoothly, encouraging optimal truck performance.

Forget What You Thought You Knew: 3 Diesel Myths Busted

fuel injectionDiesel cars are becoming increasingly popular in the United States. In fact, projections have the percentage of cars with diesel engines doubling from 3.2% of vehicles sold in 2012 to 6.4% in 2018.

Despite the new interest in these cars, however, a number of myths still permeate the minds of car buyers. And it’s a shame, considering the numerous benefits that come from diesel cars.

We’ve written this blog to help dispel some of the more pervasive misconceptions that surround diesel cars and help you better understand your vehicle.

    1. Diesel Is Dirty
      We’ve all seen a truck making its way down the highway with plumes of black smoke erupting out of its tailpipe. But with the most recent regulations passed on diesel engines, they actual emit less carbon than gasoline engines. That is because of the addition of the Diesel Particulate Filter, which helps remove visible smoke in newer models.


    1. Diesel Isn’t Efficient
      People think that diesel-powered cars are slow, which is mostly wrong. There is, however, one small point of fact to be made. Diesel engines tend to work best at lower revolutions per minute, or when the car is going under 65 miles per hour, whereas gasoline engines work better towards the top end of the spectrum. Considering most driving (and most towing) occurs below 65 miles per hour, diesel engines are more effective.


  1. Diesel Isn’t Good For Long Trips
    No one knows why this myth was started. Perhaps because people think that diesel is less widely available than gasoline, or because they think that diesel cars don’t adjust to different environments well. To the first point, there are constantly more diesel pumps available as more of the market turns to diesel engines. To the second, diesel cars actually perform better in a wide variety of conditions. Take high altitudes, for instance. While gasoline engines need to adjust to the decrease in oxygen in the engine, diesel can adjust oxygen intake and fuel injection to maximize performance.

The myths surrounding the uses of diesel fuel are many, but hopefully, this myth busting session has taken care of a few of the more common ones.

Dieselogic is a proud supplier of the best diesel fuel injectors. If you have questions about your diesel engine’s health or fuel injection system, contact us today.

Why Is My Engine Overheating? Diagnose Your Diesel Issue Today

duramax injector rebuild kit

Temperature and pressure control are key to keeping your engine and diesel fuel injection system functioning properly. If you’re already using a diesel fuel injection system, then you likely know that injection pressures of 30,000 psi create a fine mist of fuel and more efficient burning. However, this system can be compromised when temperature rises too high. And when your diesel truck is overheating, the root cause may not be immediately obvious.

But with the right information, a sharp eye, and a visit to the mechanic, you can diagnose your engine issue and get back on the road. The following are just some of the common causes of an overheated engine.

    • Coolant Leaks: Coolant loss usually means that there are cracks or general damage in your vehicle’s gasket. If you notice a low coolant level or an excess of bubbles in the fluid, this is a sign that something is wrong. Get your truck to a professional to address the issue.


    • Broken Cooling Fan: When your cooling fan breaks, the engine will heat up too much. This issue may warrant a replacement of the entire fan, but repair may also do the trick. Cooling fans sometimes break due to an electrical issue, so some wire fixes may also solve the issue.


    • Clogged Diesel Injectors: If your injection system is having trouble releasing fuel, the engine may have to work too hard to compensate. This can cause it to overheat. Make sure that you are checking your injections for clogs or leaks to keep everything running smoothly. Also, make sure you have the necessary tools to solve the problem. For instance, if you’re working with Duramax injectors, have a Duramax injector rebuild kit on hand just in case.


    • Thermostat Faults: Your engines sensors may also be faulty, making it difficult to regulate the entire system. So, if the thermostat cannot even tell that the engine is running too hot, it won’t be able to trigger cooling systems.


  • Collapsed Radiator Hose: Broken or collapsed hoses also cause overheating,
    since fluid cannot get to or from the engine without leaking. A mechanic will be able to easily spot this problem and can install a new hose for you.

By having the right tools on hand, such as a Duramax injector rebuild kit, you can solve small engine and fuel injection issues at home. Otherwise, you should always consult a mechanic before performing larger repairs. If you do, major issues like overheating can be easily solved.

What Your Truck’s Exhaust Smoke Color Is Trying To Tell You

diesel fuel injection system

When your truck is in need of maintenance, there are usually specific signs. Whether a strange smell indicates that your diesel fuel injection system needs replacing, or a loud noise warns of a popped tire, your senses can often diagnose mechanical problems.

One common symptom of diesel truck issues is abnormal color of exhaust smoke. Black, blue, and white smoke colors, in particular, are usually a sign that something needs attention. While it does not replace the advice of a mechanic, use this guide to understand what each of these exhaust colors might mean.

    • Black: This type of smoke often points to problems with your fuel injectors. It could mean that these is too much fuel in the combustion chamber or the fuel injectors are not firing at the right moment. Have your diesel fuel injection system timing fine tuned and try upgrading to a higher fuel grade. Ask a mechanic how you can prevent this issue in the future.


    • Blue: If your truck is emitting blue or blue-gray smoke, oil is burning in your engine. This can be caused by leaky valves, worn piston rings, and failure of critical seals. Perhaps your engine has simply been poorly maintained or a recent blow has caused damage. A professional can take a look at your engine and figure out exactly where this oil is coming from.


  • White: A light color smoke often indicates that very little fuel is burning or your truck is not burning any fuel at all. This can also mean that your vehicle is too cold or that coolant has made its way into the combustion chamber. Check whether your chamber is actually heating the fuel and if there are any cracks letting coolant seep out.

Remember that cars with diesel engines are 20% to 40% more efficient than those that use gasoline, but this efficiency can dip when there is a problem with the engine. The best way to diagnose the specific causes of smoke is to take your car to a professional. They will be able to explain exactly what went wrong and how you can prevent these mechanical errors in the future.

How Diesel Fuel Quality Affects Your Injectors

lly injector balance ratesThere are many factors that impact the function of your diesel fuel injection system. While it is often overlooked, diesel fuel quality is one of them. If you are not putting low quality fuel into your vehicle, it could be detrimental to your car’s overall function. From the LLY injector balance rates to injection timing, the whole system can get thrown off. Use this guide to learn just how the fuel you pump into your vehicle changes the way your car runs.

What Causes Fuel To Go Bad?

    • Debris: Especially in lower grade fuels, debris may be floating around. When this gets into your injection system, it can easily clog and scratch up your nozzles.


    • Rust: Through the fuel production process, rust can also get into the fuel. Just like other types of debris, this can line your system and plug the system’s nozzles.


  • Temperature: As with most liquids, fuel has an ideal temperature point. And when diesel fuel is kept above 86 degrees Fahrenheit, its life drops between six and 12 months.

How Can I Tell If My Fuel Is Bad?

    • Smoke: When your vehicle is producing excessive dark smoke, it is a sign that your diesel fuel injectors are clogged up with bad fuel. Be sure to have them cleaned as soon as possible and check the rest of the system as well.


    • Low RPM: When your nozzles are clogged with fuel, the right amount of fuel is not getting to your engine. This can reduce power and slow down your RPMs.


    • Cloudy Fuel: Sometimes, you may actually be able to spot bad fuel by simply looking at it. If you notice that debris are floating around or it has a hazy appearance, it is likely not the best fuel to be putting in your car.


  • Foul Smells: You might actually notice a strong fuel odor or a different “off” smell. This may mean that your engine is working too hard or fuel is leaking from the nozzles.

If you notice any of the above problems, be sure to get your vehicle to a professional as soon as possible. Every detail, such as LLY injector balance rates, depends on the function of the system as a whole. And of course, talk to your mechanic or manufacturer about what fuel grade is best for your car. This will help you choose quality fuel every time and avoid these issues.

Why You Should Think Before Replacing Just One Fuel Injector

2005 Duramax diesel

When it comes to your diesel fuel injection system, a single injector is often the cause of an entire engine failure. When you have become the expert on your 2005 Duramax diesel system or other industry equivalent, it might be tempting to just replace that one nozzle and be done with it.

But that is not always the best option.

Often, one little problem in your diesel engine may be indicative of other system failures. This is why it is often best to replace multiple injectors at once. Before you make your decision, consider these following reasons to order a full set of injectors the next time one of yours breaks.

  • The other injectors are likely on the way out too. Especially if you installed all of your diesel injectors around the same time, they are going to likely fail around the same time. If you purchased them at different times, it will be more convenient for you to get them on the same replacement schedule.
  • Bulk replacement is often more economical. Buying things together saves on packaging and money. This is especially true if you are ordering from an online retailer, as you will ultimately save on shipping costs when ordering a box of injectors rather than one at a time.
  • You will pay less for labor at the mechanic. In addition to saving on shipping costs and general packaging, you will also save on labor fees by replacing your diesel injectors at once. Your diesel specialist will be able to install your new parts quickly and efficiently all at once, rather than charging you in pieces for single installations.
  • Replacing one does not save effort. Any diesel vehicle professional will not be inconvenienced by having to install a set of injectors. If you are installing them at home, it may feel like more effort at first. But the more you do it, you will prefer to quickly install new injectors together.

Whether you own older 1997 Powerstroke injectors or are searching for parts for your 2005 Duramax diesel, it’s important to be mindful of your replacement schedule. Remember that more modern common-rail injector systems can cause twice the wear because they fire fuel two or three times for each engine cycle. Talk to your mechanic about how to tell if your injectors are on the out, and what types of injectors you need to order.

A Basic Guide To Diesel Fuel Injection Terminology

lmm injector life

Owning a diesel car requires a different set of knowledge than owning a gasoline model. Not only is diesel fuel 25% to 30% more energy rich than gasoline, it also uses a completely different injection model. If you are new to owning a diesel vehicle, you may not completely understand what exactly is happening when your car injects fuel.

From determining an LMM injector lifespan to replacing your Cummins injector nozzles, it is important to understand the following language. Start with these and add more as you go. By reading up on this diesel fuel injection system terminology, you can talk to any car professional about your diesel fuel injection system.

    • Nozzle: One of the most important parts of your injection system, the nozzle actually provides a connection between the injection needle and the engine’s combustion chamber. This may be the part that you will replace most often.


    • Start Of Delivery: This measurement varies in every vehicle. Start of fuel delivery is usually triggered by a certain pressure. This pressure builds as the car runs, and once it hits a certain point, the injection system sensors know to release fuel into the combustion chamber.


    • Injection Duration: This is the exact time period that the system uses to release fuel. Related is the injection pattern, which determines how often the system releases fuel.


    • Timing Marks: These marks are located at different parts of the engine, flywheel, and damper to make sure that injection timing is happening correctly. If the marks are not aligned, timing could be calibrated incorrectly. This can mean trouble for your engine.


  • Thermal Efficiency: Your mechanic may measure this to make sure your vehicle is using the perfect amount of energy. Thermal efficiency is how much fuel your car is using compared to the amount of fuel that is actually in the car.

If you have any questions about certain terms used by your mechanic, be sure to ask for clarification. Once you have your diesel vehicle for a while, you will get used to all of the moving parts and how they work together. You will learn, for example, how LMM injector life impacts injection duration. For now, continue to educate yourself so that you can identify any problems that come up by name.