Learn how a cat-back exhaust boosts power, sound, and efficiency—plus what to buy, how to install it, and why it’s legal.
Octane boosters are chemical additives that increase a fuel’s octane rating. There are several legitimate reasons to use them.
There are many possible causes for getting stuck with an unresponsive car. Here’s a quick checklist.
When a carburetor goes bad, there are three choices: rebuild an existing unit, replace it with a new one, or buy a rebuilt carburetor.
Motor oil is the lifeblood of every engine. Our guide will help you choose the best motor oil for your vehicle.
Swapping out stock components under the hood for polished or chromed pieces will grab attention at the next car show.
A clogged or failed MAP sensor can cause many issues. Fortunately, it's relatively easy to replace a MAP sensor.
The MAF sensor is arguably the most critical one in your engine. Many aspects of engine control are based on its readings.
Some vehicles have multiple batteries to power auxiliary electronics. In that case, you need a battery isolator.
Enthusiasts say the CVT transmission is slow, boring, and soulless. But there are reasons to reconsider.
Replacing the alternator belt is a relatively simple job. See our step-by-step guide, and learn about proper belt tension.
Over time, the narrow passageways within a carburetor will get dirty. Cleaning a carburetor keeps your car in top shape.
A timing light helps you set up classic engines to work at peak efficiency. Use this tool to fine-tune when the spark ignites the fuel.
DOHC engines use two camshafts on top of the engine’s cylinder head. Each one controls a different set of valves.
All batteries lose power over time, especially when not in use. The answer for a car in storage is a trickle charger.
A leak down test will show you how much compression each cylinder has and how well the cylinder is sealing.
Replacing a fuel pump is a moderate job for most DIYers. It takes three to five hours and requires no special tools.
Learn about car clutches, including how they work, parts, and common clutch problems.
Even if a spark plug says it is pre-gapped, that gap may not be correct for your vehicle. New spark plugs need to be gapped.
Over time, transmission fluid can become contaminated by dirt and metallic shavings. It needs to be periodically checked.
EcoBoost refers to gas-powered engines that combine smaller engines, fuel injection, variable camshaft timing, and turbocharging.
