Engine Diagnostics & Troubleshooting

Take the guesswork out of auto repair with our expert Engine Diagnostics and Troubleshooting guides. Whether you’re facing a stubborn “Check Engine” light, a mysterious “crank but no start” condition, or an intermittent rough idle, we provide the step-by-step procedures to find the root cause. Our resources cover how to use OBD-II scanners, interpret live data PIDs, and perform manual tests with multimeters and vacuum gauges. Learn to translate complex trouble codes into actionable repairs and master the logic of professional engine diagnostics to save time and money in the garage.

Engine Vacuum Gauge Test: A Simple Guide

03/11/2026

An old-school engine vacuum gauge test is a powerful ally. Because, it provides a direct window into your engine’s soul. This tool is often forgotten in the digital age. Yet, it can diagnose an engine […]

Fuel Leak – If You Smell Fuel, This Could Be a Sign of a Fuel Leak

02/28/2026

Above all, you should never have a fuel smell in your vehicle. So, if you smell fuel, this could be a sign of a fuel leak. A gas leak can be dangerous, because it is […]

Engine Coolant Antifreeze – Engine Cooling and Testing Made Easy

01/26/2026

The job of engine coolant antifreeze is to protect the engine from severe temperature and corrosion. That’s why you should always flush and replace your engine coolant antifreeze at recommended intervals. Otherwise, it will break […]

Intake Manifold Leaks – Causes, Symptoms, Testing and Prevention

01/18/2026

Intake manifold leaks are the most common leaks found in an engine. Consequently, intake manifold leaks are usually the fault of the gasket. That gasket, can be made of paper, rubber, metal, and sometimes a […]

Valve Lash Setting – Top End Ticking Noise, Usually The First Sign

Valve Lash Setting For Quiet Engine Performance

01/08/2026

Valve lash setting, is something most drivers don’t even think about. First, you need to know if you even have an adjustable valve train for valve lash setting. In most cases, you will not have […]

Engine Will Not Start, But Fuel, Spark And Compression Are Good

01/01/2026

All engines require three things to start and run, spark, fuel and compression. So, if any one of these is missing, your engine will not start. With a engine will not start issue, the possible […]

Engine Compression – What Can Cause, Low Or No Compression

12/28/2025

So, engine compression is the pressure created, inside each of the engine’s cylinders. And, low or no compression leads to, incomplete combustion and misfires. Symptoms of low engine compression can be, an illuminated (CEL) and […]

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 […]

Reduced Engine Power Warning Light – What To Do And Why?

12/07/2025

Reduced Engine Power, can have many different names. All depending on the year, make and model of your vehicle. So, whether its, reduced engine power, limp mode, fail safe mode or limp home mode, they […]

COPYRIGHT © 2026 Danny's Engineportal by Danny Bender - DISCLAIMER: All wallpapers and backgrounds found here are believed to be in the "public domain". Most of the images displayed are of unknown origin. We do not intend to infringe on any legitimate intellectual right, artistic rights or copyright. If you are the rightful owner of any of the pictures/wallpapers posted here, and you do not want them to be displayed or if you require a suitable credit, then please contact us and we will immediately do whatever is needed either for the image to be removed or provide credit where it is due. Thank You !