How Car Engines Work

Understanding how car engines work is essential for diagnosing problems and performing accurate repairs. The internal combustion engine converts fuel into mechanical power using a combination of precisely timed components.

This category explains engine components and systems in detail, including pistons, crankshafts, camshafts, and timing mechanisms. It’s designed as a foundation for both beginners and experienced DIY mechanics.

What you’ll learn:

How engine components work together
Basic engine operation and combustion cycles
Common internal engine failures

If you want to understand engines before diving into repairs, this is your starting point.

👉 For diagnostics and repairs, see: Engine Maintenance & Troubleshooting

Torque Specification – Torque To Yield – Torque, Plus Angle

08/06/2025

Without having the proper torque specification, assembling an engine, is just asking for failure. This is especially true, on today’s lightweight engines, that use mostly aluminum castings. So, having the proper torque specification, is crucial —READ-MORE

Engine Stalling Issues – Now You Question Your Vehicle’s Reliability

07/29/2025

So, engine stalling issues can be frustrating, and always seem to happen at the worst possible time. Most often, diagnosing the cause can seem like a complicated job. But, the truth is, that all modern —READ-MORE

Flexplate – What Does It Do ? – What Can Happen If It Fails ?

07/20/2025

In vehicles with automatic transmissions, a metal disc called a flexplate, connects the crankshaft to the torque converter. So, a flexplate, as the name implies, serves as a flex-shock device, between the torque converter and —READ-MORE

Variable Valve Timing (VVT) – Benefits & Advantages Explained

07/15/2025

So, Variable Valve Timing (VVT) is a technology that’s used on many late model engines. And, is designed to improve fuel economy, idle smoothness, emissions and performance. Variable Valve Timing (VVT) allows valve timing to —READ-MORE

Intermittent Temperature Related Engine Problems, Where To Start

07/11/2025

Diagnosing intermittent temperature related engine problems, can be a challenge. Especially, if they affect driveability. Problems that come and go or only occur under certain driving or operating conditions, can be very difficult to troubleshoot. —READ-MORE

Engine Troubleshooting – Common Problems With Solutions

06/27/2025

Engine troubleshooting, is the most important part of any automotive repair. So, by proper engine troubleshooting, you won’t waste time and money fixing things that don’t need to be fixed. Engine troubleshooting as early as —READ-MORE

Engine Knocking – Pinging – Rattling Noise – Most Common Causes

06/23/2025

Are you hearing an annoying, engine knocking, pinging or rattling noise, when you accelerate your engine. For instance, knocking, when working hard under load, like driving uphill, passing a slowpoke or towing a trailer. Then, —READ-MORE

Engine Knocking Ticking Noise – Is This The End Of Your Engine

06/18/2025

So, your driving down the road and all of a sudden you hear, a engine knocking ticking noise. Many assume this engine knocking ticking noise, is the end of their engine and just move on. —READ-MORE

Engine Rattling Noise – Reasons You May Have Them – Solutions

06/06/2025

You start your engine like normal, but you hear an engine rattling noise, you’ve never heard before. Subsequently, an engine rattling noise, can spring up from a number of different sources. So, the first part —READ-MORE

Engine Problems Can Be Scary – Learn About The Common Ones

05/31/2025

For most people, diagnosing engine problems is not easy. And, can be scary to even think about. That’s why, our fear of the unknown, is what makes engine problems so scary. So, if you own —READ-MORE