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Diesel Maintenance Checklist

When it comes to diesel engines, they’re known for their torque, dependability, and ability to do hard jobs that gasoline engines can’t. While both engines function in similar ways, diesel engines have several differences that make understanding diesel care very important.

What Makes Diesels Different?

The primary difference between a diesel engine and a gasoline engine is how the fuel is ignited. Diesel engines rely on internal combustion that operates using diesel fuel. It’s important to understand this process. Here’s a breakdown of a functioning diesel engine.

The intake stroke starts as the intake valve opens, letting air into the combustion chamber. Then, the compression stroke moves the piston up, compressing the air in the cylinder at high pressure. Once the air is compressed, diesel fuel is injected directly into the cylinder at high pressure. This causes the fuel to ignite. The power stroke forces the piston down, generating power to turn the crankshaft and drive the vehicle.

Diesel Engine Maintenance Checklist

Check Oil and Replace Regularly

We recommend changing your diesel engine’s oil every 3000 miles or stick according to the manufacturer’s guidelines. Regular oil changes prevent engine wear and keep the engine clean.

Pouring oil from bottle into funnel

Inspect Fuel System

Clean or replace fuel filters as recommended. Clogged filters can affect engine performance and lead to fuel system issues.

Monitor Coolant Levels

Check coolant levels regularly to ensure the engine stays within optimal operating temperatures. Clean the radiator and hoses to prevent blockages.

Inspect Air Filters

A clogged air filter can reduce performance and fuel efficiency. Replace air filters every 12,000 to 15,000 miles and replace it when it is visibly dirty, clogged, or if it significantly impacts engine performance.

Check Belts and Hoses

Inspect belts and hoses for wear and replace them if necessary. A snapped belt or cracked hose can lead to engine damage or overheating.

Test the Battery

Diesel trucks rely on powerful batteries to start the engine. Test your battery regularly to ensure it’s in good condition. This is especially important before long trips.

DEF & Diesel Particulate Filter

Ensure your diesel exhaust fluid and diesel particulate filter are replaced on time to ensure your diesel engine runs the way it should.

Woman filling diesel vehicle with diesel exhaust fluid

Common Diesel Engine Problems

Fuel System Issues:

Over time, fuel injectors can become clogged or malfunction, resulting in poor engine performance, rough idling, or difficulty starting.

Low Compression:

If the engine’s compression is low, it may fail to generate enough power. Worn-out piston rings, cylinder heads, or valves can cause problems.

Overheating:

Overheating is common in diesel engines, primarily if the cooling system isn’t functioning properly. Clogged radiators, broken water pumps, or low coolant levels can cause the engine to overheat.

Oil Contamination:

Diesel engines rely on high-quality oil to lubricate engine parts. Contaminated oil can lead to excessive wear and engine failure.

Diesel services in Puyallup, Washington

Benefits of proper diesel truck maintenance include improved performance, increased lifespan, enhanced safety, reduced operating costs, and environmental benefits. If you own a diesel vehicle, trust the experienced diesel technicians at 15th Street Automotive in Puyallup for all of your maintenance and repair needs! Our team has extensive training in servicing various makes and models of diesel vehicles, and will ensure yours is ready for anything you throw at it! Contact us by phone or schedule online today!