Diesel Tips and Diagnostics Archives

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Posted on January 1, 2025June 29, 2026 by Caitlyn Vance

Why Intake Valve Seats Fall Out In Diesel Cylinder Heads After Overheating

A dropped valve seat in a diesel engine isn’t just a cylinder head issue – it’s a direct result of thermal stress, material expansion, and loss of interference fit.

This type of failure is most commonly seen after an overheating event, and once it happens, the damage is usually severe enough to require cylinder head replacement and, in many cases, piston repair.

Understanding why valve seats fail – and what leads up to it – is critical to preventing repeat engine damage.

Posted on November 12, 2024June 10, 2026 by David Ley

The Pros and Cons of an EGR System Delete

When you start looking into the pros and cons of EGR deletes, it’s easy to see why EGR valves on diesel engines have such a poor reputation. You’ve probably heard plenty of stories about the trouble they cause for drivers and shop owners alike.

Posted on September 10, 2024August 14, 2025 by David Ley

About The Caterpillar 3406E

In 1993, Caterpillar began production on the 3406E, the last model engine in the 3406 series. While its predecessors –the A, B, and C– were fully or partially mechanical, the Caterpillar 3406E was the first successful fully electronic motor. The 3406E is usually found in Peterbilt and Freightliner vehicles.

Posted on September 10, 2024 by David Ley

About the Caterpillar C15 Engine

Steam tractors became the go-to tool for agricultural development in the late 1800s/early 1900s. Although their use was widespread, this machinery wasn’t perfect; they didn’t work everywhere. In California, these immensely heavy tractors kept sinking into the soft earth.

Posted on September 3, 2024December 3, 2025 by David Ley

Dinex Emission: The Solution to Diesel Pollution

Dinex Emission is a company that has been dedicated to helping diesel operators meet the high standards of the EPA for a very long time. Though the EPA’s goal is to reduce the emissions of dangerous gasses into the air, their restrictions can often make transporting goods, completing construction projects, and harvesting large crops more difficult. As an expert in the field of diesel emissions control, Dinex has long been the solution to this obstacle.

Posted on May 2, 2024April 15, 2026 by David Ley

Common Diesel Engine Problems and Solutions

Diesel engines are workhorses, powering everything from trucks to heavy machinery. However, like any complex machinery, they can encounter problems. Let’s explore some of the most common issues and their solutions:

Posted on September 15, 2023July 25, 2025 by David Ley

How Do You Know When It’s Time to Replace Your Diesel Engine Fuel Injectors?

Has your diesel engine just not been performing like it used to? Maybe you’ve noticed a drop in fuel economy, or other new issues. There’s a chance that you might need to replace your common rail injectors.

Posted on September 15, 2023 by David Ley

Diesel Engine Product Spotlight: Mack Fuel System Components

It’s vital that the fuel system on your diesel engine is functioning properly. So, when it comes time to replace some of the fuel system components on your Mack diesel engine, you want to make sure that you’re getting the best!

Posted on September 15, 2023 by David Ley

5 Easy Ways to Improve Fuel Economy with Your Diesel Truck

There is no denying that diesel prices have been a tad high lately.

Posted on September 15, 2023 by David Ley

Diesel Engine Break In Procedure

We often get calls about the break in procedure of a newly rebuilt engine. Proper break in is critical and sometimes overlooked. Even though you may have used one of our outstanding overhaul kits and your mechanic did a great job installing the parts, if the engine is not broke in correctly, the rings may not seat. This will lead to oil consumption and power loss.

Posted on March 9, 2023 by David Ley

5 Myths About Using Aftermarket Diesel Parts Debunked!

With so many different kinds of aftermarket diesel engine parts on the market today, there’s a ton of conflicting information about their durability, performance, and manufacturing. Some people will tell you that using aftermarket parts in your engine is dangerous and would void your engine’s warranty, while others say some aftermarket parts are even better than the OEM. So who is correct?

Posted on February 27, 2023 by David Ley

CATERPILLAR 3406E TECHNICAL SPECIFICATIONS, SERIAL NUMBERS, & PREFIXES

Are you curious about your Caterpillar 3406E diesel engine? Well, we’re taking you through this engine in detail, so wonder no more! Read on to learn the history of the engine, as well as some common failures you might experience.