When a turbocharger fails, most people ask the same question:
Should you rebuild it with a cartridge (CHRA), or replace the entire turbo?
The answer depends on what actually failed.
And getting that wrong can cost you more than the turbo itself.
Continue reading Should You Replace the CHRA or the Entire Turbocharger? What Diesel Owners Need to Know
If you’ve ever tried to compare diesel fuel pumps, you’ve probably run into the same problem:
👉 Plenty of brand names
👉 Almost no clear explanations
If you’re in sales, diagnostics, or repairs, you’re expected to understand:
This guide breaks it down in a way that actually makes sense.
Continue reading Diesel Fuel Pump Brands Explained: Bosch vs Delphi vs Denso vs Stanadyne (And More)
The Cummins ISC-G is not just a diesel engine running a different fuel.
It is a spark-ignited natural gas engine, and that changes how the cylinder head is designed, how it wears, and how it fails.
If you treat it like a diesel cylinder head, you will miss critical differences that directly impact performance and longevity.
Continue reading Cummins ISC-G Cylinder Head: What Makes Natural Gas Cylinder Heads DifferentIf you’ve ever wondered why a heavy-duty diesel engine won’t continue revving forever, the answer is simple:
The engine won’t let you.
Every heavy-duty diesel engine has a governor whose job is to control engine speed by regulating fuel delivery. Older engines accomplished this mechanically using springs and spinning flyweights inside the injection pump. Modern diesel engines perform the same function electronically through the Engine Control Module (ECM).
While many drivers think of governors as performance limiters, they’re actually one of the engine’s most important safety systems.
Without a governor, a diesel engine could quickly exceed its safe operating speed, increasing the risk of catastrophic engine damage.
In this article, we’ll explain how diesel governors work, why they exist, and how they help protect today’s heavy-duty engines.
When a heavy-duty diesel engine begins showing signs of major wear or internal failure, one of the biggest decisions a repair shop or owner-operator faces is: inframe rebuild or out-of-frame overhaul?
Choosing the wrong rebuild strategy can dramatically impact:
Some engines only require an inframe rebuild to restore compression, oil control, and lower-end stability. Others require complete engine removal and total teardown to properly address severe internal damage.
Understanding the difference between these two rebuild paths is critical before ordering parts or beginning teardown.
Do you own a Detroit Diesel Series 60 engine? It probably runs well for the most part. All three versions of this electronically-controlled engine have a favorable reputation; despite being out of production for years, the Series 60 remains a popular choice for many truck drivers.
Continue reading Detroit Diesel Series 60 Common Issues and FailuresA breakdown while driving isn’t just inconvenient – it can be dangerous if handled wrong.
Whether it’s loss of power, overheating, a blown tire, or warning lights across the dash, what you do in the first few minutes matters most.
This isn’t about panic.
It’s about control, visibility, and safety.
Diesel engine overheating is one of the most common – and most damaging – issues you can face.
What starts as a slight temperature increase can quickly turn into major engine damage if not diagnosed correctly.
If your diesel engine is overheating, identifying the root cause early is critical to preventing expensive repairs and downtime.
Continue reading Diesel Engine Overheating: How to Diagnose the ProblemModern diesel engines are not controlled by fuel and air alone.
They rely on electronics, sensors, software, and real-time data to manage performance, emissions, fuel economy, diagnostics, and engine protection. At the center of that system is the Engine Control Module, commonly called the ECM.
The ECM is often described as the “brain” of the engine. That is a simple way to explain it, but the ECM does much more than turn systems on and off.
It constantly reads sensor data, compares that information to programmed operating limits, and adjusts engine functions in real time. Fuel injection, turbocharger control, EGR operation, DPF regeneration, DEF dosing, fault codes, derates, and engine protection strategies can all involve the ECM.
For truck owners, fleets, and repair shops, understanding what the ECM does can make diesel diagnostics much easier.
OEM diesel engine parts are often treated as the standard.
They come in the original manufacturer’s packaging, follow factory specifications, and move through established dealer networks.
However, when you look at the price, the real question becomes:
👉 What are you actually paying for?
Because in many cases, the cost difference between OEM and high-quality aftermarket parts is not driven by the part itself. Instead, it’s driven by everything around it.
Continue reading How to Save Up to 64% Off OEM Diesel Engine Parts (And Where Your Money Actually Goes)There are many possible causes of engine failure. You can see our earlier post on diagnosing engine failures, too.
Continue reading Diesel Engine Failure Diagnosis: Compression Issues
Cummins didn’t just evolve injector systems to improve performance – they fundamentally changed how engines fail, how they’re diagnosed, and how repairs need to be approached.
From mechanical injectors to XPI common rail systems, each generation introduced new advantages – but also new failure modes.
If you’re diagnosing fuel system issues on a Cummins engine, understanding these differences is critical.
Continue reading Why Cummins Injector System Upgrades Change Failure Patterns (Mechanical vs CELECT vs HPI vs XPI)
