Ignorance might be bliss, but eventually, it could lead to a challenging situation. This applies to preventative maintenance on your diesel engine, which is why scheduling your annual inspection is a smart move to help you avoid larger issues later.
You could have a minor problem at this very moment, one that can snowball into something much more critical. Fortunately, your local mechanic offers the diesel maintenance required to prevent that from happening – you just need to make the appointment.
The Checklist So, what do diesel mechanics look for when they check over your engine? The list is long, but it’s important.
Keep in mind that most diesel mechanics have completed their Automative Service Excellence certification to demonstrate their competency, which means they know about more than just your engine – they can also diagnose problems with brakes, air conditioning and other areas that are important for the operation of your vehicle.
But because the engine is the most important aspect of getting a vehicle from point A to point B, let’s focus on the inspection your mechanic will provide your engine.
Your Diesel Mechanic Will Check Over the Following:
Codes Just like a gas engine, diesel engines are equipped with technology that allows mechanics to attach a computer and check for fault codes. These codes identify specific anomalies that need to be addressed.
Compression Without proper compression in your diesel engine, you’re going to encounter difficulty getting it started, and you’ll detect misfires even when it does start. Your vehicle might feel sluggish despite stepping on the accelerator. Your mechanic will examine your piston rings, cylinder heads and signal valves and ensure compression issues are fixed.
Air Intake A finely tuned engine is one that has sufficient airflow, which means the air intake system is clean. This includes your air filter, turbocharger and intercooler, all of which your mechanic will check to ensure they’re not dirty, damaged, leaking or worn down.
Emissions and Exhaust Don’t risk getting red-flagged because of excessive emissions – get your exhaust gas recirculation valve check and your diesel particulate filter changed. Your mechanic will also want to take a look at your selective catalytic reduction system and check for the correct levels of diesel exhaust fluid.
Oil Change Diesel engines require more frequent changes than a gas engine. If you’re not 100% sure of how many hours your engine ran in 2024 or since its last oil change, be sure to ask your mechanic to check the quality of your engine oil and if you’re using the right viscosity.
Fuel Filter Diesel fuel filters tend to get a lot grimier than gas engine filters. Your mechanic will determine if yours needs replacement. A clean filter means less chance of engine stalls or sputtering with an outpouring of black exhaust smoke.
When you bring your diesel-powered vehicle to us at Gray Diesel & Equipment Services, you get a team of professionals on your side. Let our experts give your engine and other systems a good look – we’ll pinpoint all possible issues and get you out the door and running smoothly.