Common Problems Archives

Posted on January 1, 2026May 21, 2026 by Caitlyn Vance

Cummins Fuel System Problems: Symptoms, Diagnostics, and Common Failures

Cummins fuel systems are designed to deliver precise fuel pressure, injection timing, and fuel volume under extreme diesel operating conditions. Modern Cummins engines rely heavily on consistent fuel delivery to maintain combustion efficiency, throttle response, emissions performance, and starting reliability.

When a Cummins fuel system begins developing problems, the warning signs are not always dramatic at first. Generally, the symptoms begin small before turning into major performance or reliability issues.

In many cases, one of the most common early warning signs is a hard start. In other words, a Cummins engine that cranks longer than normal, starts inconsistently, loses prime, or struggles after sitting overnight may already be showing signs of fuel pressure loss, injector wear, contamination, or air intrusion somewhere in the system.

Posted on December 21, 2025May 21, 2026 by Caitlyn Vance

Common Case/New Holland Diesel Engine Problems

Case/New Holland diesel engines – powered largely by FPT Industrial platforms – are widely used across agriculture and heavy equipment.

You’ll see them in:

Combines
Tractors
Construction equipment
Industrial applications

Engines like the 8.7L and 12.9L platforms are built for demanding environments, but like any diesel engine under load, they have common failure points.

Understanding these issues early can help prevent downtime, repeat failures, and major engine damage.

Posted on September 15, 2025April 30, 2026 by David Ley

Problems You Might Have with Your CAT C15 ACERT Diesel Engine Oil Pump

Lubrication is key to keeping your engine functioning properly. If your diesel engine isn’t properly lubricated, components could begin to wear more quickly and even seize up, costing you more money. The oil pump is critical to keeping your engine lubricated.

Posted on September 15, 2025April 30, 2026 by David Ley

Cylinder Head Problems on a Caterpillar C15 ACERT

Caterpillar C15 ACERT. You’ve probably heard of it. It’s a very popular engine, and we get a lot of questions on it from our customers.

Posted on September 15, 2025April 30, 2026 by David Ley

Caterpillar C15 ACERT Diesel Engine Camshaft Problems

Is the camshaft in your CAT C15 ACERT diesel engine performing correctly? It’s essential that this component operates properly for your engine to function as it should. Each part of the camshaft must perform their functions at precise timing in relation to the motion of the piston. If they don’t, it could spell disaster for your diesel engine.

Posted on September 15, 2025April 30, 2026 by David Ley

Problems with CAT C15 Diesel Engine Oil Pumps

Your oil pump. It’s probably not a part you’ve thought about a lot, but it serves an important role in your diesel engine.

Posted on September 15, 2025April 30, 2026 by David Ley

CAT C15 ACERT Problems that Require a Diesel Engine Rebuild Kit

Did you know that performing regular maintenance can go a long way in keeping your diesel engine operating at its peak?

Posted on June 26, 2025May 21, 2026 by Caitlyn Vance

Caterpillar C12 Camshaft Problems, Symptoms, and Replacement

If your Caterpillar C12 is losing power, running rough, or showing signs of valve train issues, the camshaft may be part of the problem. A worn camshaft can affect valve timing, engine efficiency, fuel economy, and overall performance. Left too long, what starts as a drivability issue can turn into a much larger repair.

Because the camshaft plays such a major role in how the engine breathes and performs, wear in this area should never be ignored. If you are already narrowing down the repair, our Caterpillar C12 Camshaft is a good place to start, and you can also browse more Caterpillar Engine Parts if the repair involves other related components.

Posted on June 6, 2025April 30, 2026 by David Ley

Detroit Diesel Series 60 Common Issues and Failures

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.

Posted on March 25, 2025April 30, 2026 by David Ley

Caterpillar C15 and 3406E Oil Pump: Symptoms, Failure Causes, and When to Replace

Low oil pressure isn’t something you ignore on a diesel engine.

On a Caterpillar C15 or 3406E, it’s often a warning sign that something deeper is going wrong inside the engine.

And in many cases, the issue starts with the oil pump.

Posted on March 4, 2025May 21, 2026 by Caitlyn Vance

Cummins ISX Fuel Injector Problems: Symptoms, Causes, and Replacement Guide

If your Cummins ISX is hard starting, losing power, or producing excessive smoke, failing fuel injectors could be the cause.

Injector issues don’t usually show up all at once.

They start small, but if ignored, they can quickly turn into major engine problems.

Understanding the symptoms – and addressing them early – can save you time, money, and downtime.

Posted on February 22, 2025April 30, 2026 by David Ley

7 Common Detroit Diesel Series 60 Problems

Do you have a Series 60 engine from Detroit? For the most part, it probably runs great for you. This electronically controlled engine has a favorable history, shared between all three versions, and despite having been out of production for years now, it remains a popular choice for many operators.

Posted on January 15, 2025April 30, 2026 by David Ley

Caterpillar C15 Head Gasket Problems: Failure Points, Diagnosis, and Replacement

Head gasket problems on the Caterpillar C15 are rarely random.

They are almost always tied to:

Heat
Clamping force
Or failure in related components like the spacer plate or cylinder head

If you’re seeing coolant, oil, or pressure issues – especially toward the left side or rear of the engine – you’re already looking in the right place.