causes Archives : Danny's Engineportal

Close-up of performance engine camshaft and flat-tappet lifters being lubricated with high-zinc engine oil.

Low Zinc Engine Oil Guide: How to Protect Flat Tappet Cams

03/31/2026

The Problem with Modern Low-Zinc Oils: Is Your Engine at Risk? For decades, “zinc” was synonymous with engine health. But if you’ve walked down the oil aisle lately, you might have noticed a shift. Modern […]

Engine Misfiring: What can cause it? Tracking Down the Problem

02/23/2026

So an engine misfire isn’t just annoying—it’s a warning sign. Beyond the shaky idle and poor gas mileage, ignoring a misfire can lead to expensive repairs. Consequently, misfires reduce gas mileage and increase emissions, which […]

Engine Damage – Look for Deterioration, Before It’s Too Late

02/06/2026

It’s not always easy to recognize, when your vehicle is suffering from possible engine damage. Many symptoms can be overlooked and seen as “normal.” engine damage While not all symptoms may threaten the life of […]

Sticking Valves Because Of Carbon Deposits And Rich Fuel Mixture

12/12/2025

The first sign of sticking valves is usually, engine misfires or running rough when cold. However, sticking valves can also be, the byproduct of cold weather operation. In this case, the sticking valves will often […]

Cylinder Head Cracking – Overheating Is The Most Common Cause

11/24/2025

Cylinder head cracking can cause catastrophic damage to your engine. In some cases the crack may be so severe, that replacing the whole engine is the only cure. But most of the causes are all […]

Repeat Engine Failures From Not Diagnosing The Original Problem

11/09/2025

The installer’s worst nightmare, repeat engine failures from not diagnosing the original problem. So, you have replaced an engine, cylinder head, or crankshaft in your car. But a short time later you have a repeat […]

Fuel Pressure Regulators – Commonly Fail In One Of Two Ways

10/07/2025

All fuel-injected engines, have fuel pressure regulators to maintain a regulated high-pressure level. Fuel pressure regulators, must keep the pressure constant, in order for all the components of the system to work properly. Consequently, if […]

Engine Oil Pressure Warning – Possible Causes And Testing

09/22/2025

Suddenly, an engine oil pressure warning light or a low oil pressure reading, appears on your dash. At that point, the engine oil pressure warning, is the only thing you should be thinking about. Above […]

Crankshaft Thrust Bearing Failure – Causes And Remedies

09/16/2025

For years, both transmission and engine rebuilders, have struggled at times, to determine the cause, of crankshaft thrust bearing failure. Diagnosing a crankshaft thrust bearing failure, can sometimes be simple, but often is tricky. And, […]

Variable Valve Timing (VVT) – Function And Its Advantages

09/12/2025

So, variable valve timing (VVT) adjusts the opening times and lift of the valves, to suit all operating conditions. This ensures ideal charge cycles, within a wide range of engine speeds and loads. Fuel consumption […]