Engines & Components

Here’s what you need to know about car and engine air filters, including when and how to change them.

A complete guide to the popular Ford Coyote engine, starting with the modular V-8 in the 1980s and each generation that followed.

The LS engine is synonymous with V-8 performance. Decode the alphanumeric terminology and discover the secret to affordable V-8 power.

We don’t recommend cleaning oxygen sensors. There are too many delicate components that can be damaged.

An oil filter is designed to capture metal particles and sludge, keeping the circulating oil clean. Here's what you need to know.

Our guide explains how your car starter works, signs of failure, how to replace one, and the likely cost.

A dry sump system alters where oil is stored in a car. More power can be unleashed by rerouting the oil system.

The Duramax turbodiesel V-8 has powered the General Motors truck fleet for over two decades. Discover why it's so popular.

If your car stalls, get off the road ASAP. Turn on your hazard lights and coast to the shoulder. Then, check if there's a quick fix.

A muffler makes your car quiet or produces a throaty rumble. Our guide explains muffler types, resulting sounds, and replacement.

The engine control unit is the brain of an automotive engine. Discover how the ECU works and symptoms of ECU problems.

Superchargers and turbochargers both force compressed air into the engine. See our guide for making the best choice between the two.

Synthetic motor oil is the better choice for most modern vehicles. Here's why.

Here's what you need to know about a radiator upgrade: performance radiators, double-pass, downflow versus crossflow, and more.

GM churned out over 100 million LS-series V-8 engines and the 638 HP supercharged Chevrolet LS9 is the king of them all. Find out why.

Heat, vibration, and usage can reduce a car battery’s lifespan. Learn about battery types and ways to extend a car battery’s life.

Reduced engine power (known as "limp mode") indicates a serious issue that needs to be addressed immediately. Here's how to respond.

The alternator tirelessly generates electricity while you drive. Discover how it works, signs of problems, and when to replace it.

American automakers no longer offer street cars with NASCAR engine designs. But can you buy a used NASCAR engine for your daily ride?

The head is what turns the cylinders into combustion chambers. See our guide about types of cylinder heads and common problems.

Your engine won't start or run without the camshaft position sensor. Find out how a cam sensor works and when to replace it.