The timing chain connects the crankshaft to the camshaft. There are no quick fixes for a failing timing chain.
If a gasket fails in your exhaust system, you should address any leaks right away. See our guide.
Solenoids are electronic switches. Here's what you need to know about diagnosing and replacing solenoids.
Symptoms of a failing tensioner usually start with lots of squealing. See our guide to tightening or replacing belt tensioners.
See our complete guide to hemi engines, including hemi engine design, history, and which new cars with hemi engines you can buy today.
Ignition interlock devices provide an option for drivers whose licenses have been restricted due to DUI. It requires a breath sample.
The positive crankcase ventilation (PCV) valve keeps the inside of your engine clean. Discover how it works and when to replace it.
The EGR valve opens and closes to allow controlled recirculation of exhaust gasses into the engine. Here's what you need to know.
The difference in compression between each cylinder should be within 10 percent. Here's how to test engine compression. It's easy.
An ignition coil is a critical link in the chain to run a gas-powered engine. A failing coil can keep a car from starting.
Spark plug replacement a straightforward and inexpensive way to keep your car running smoothly. Here's what you need to know.
Cylinder head gaskets endure significant abuse. A blown head gasket is one of the most common causes of engine destruction.
If one turbo is good, then twin turbos are twice as good. Learn about parallel, sequential, twin-scroll, and other types of twin turbos.
Discover how each part of an automotive exhaust affects engine performance, fuel economy, emissions, and sound.
The camshaft opens and closes the valves, while the crankshaft moves the pistons with the help of connecting rods. See our guide.
An oil flush cleans your engine from the inside out. Find out how to remove built-up sludge and gunk from a high-mileage engine.
The US EPA mandates that modern on-road diesel vehicles use diesel exhaust fluid. Here's what you need to know about DEF.
Breathing exhaust fumes from a leak can be dangerous—even deadly. Learn how to diagnose and repair a leaky exhaust.
We have all been there—your reliable car suddenly won’t start. Thankfully, most of the issues are simple.
If you see oil spots on the pavement under your car, it might be time to replace the oil pan or gasket. Here's what you need to know.
The oil pump is an integral part of any car engine, supplying the necessary lubrication needed for the motor to run.
