What Is a CVT and Is It an Automatic Transmission?
Learn what a continuously variable transmission is, how it changes ratios without fixed gears, and why a CVT counts as an automatic transmission.
Systems Page 35
How engines, transmissions, brakes, suspension and electronics actually work.
What Is Brake Fluid and What Does It Do in a Car?
Learn what brake fluid is, what it is made of, how it moves force through a hydraulic brake system, where it goes, and why "brake oil" is a misleading name.
What Is Normal Engine Coolant Temperature? Gauge Readings Explained
Learn what a normal engine coolant temperature looks like on the dashboard gauge, why the needle moves, and what unusually high or low readings can suggest.
What an Oil Filter Does, Where It Is, and Spin-On vs Cartridge Types
A beginner guide to the engine oil filter: what it does, how it traps contaminants, where to find it, and how spin-on canisters differ from cartridge elements.
What a Mass Air Flow Sensor Does and How It Works
Learn what a mass air flow (MAF) sensor is, how hot-wire, hot-film and Karman vortex designs measure intake air, where it sits, and how it works with the throttle body.
What Is a CVT Transmission and How Does It Work?
Learn what CVT stands for, how a continuously variable transmission uses a belt and pulleys instead of fixed gears, and how it differs from a conventional automatic.
Windshield Wiper Blade Types Explained: Beam, Conventional, Hybrid and Silicone
Learn how conventional, beam, hybrid, aero and heavy-duty windshield wiper blades differ, how silicone compares to rubber, and how J-hook and clip mounts work.
What Are Struts on a Car and How Do They Work?
Learn what struts are on a car, how a MacPherson strut combines a coil spring and damper, where struts sit, how many a vehicle has, and how they shape ride and grip.
What Is an Ignition Coil and How Does It Work?
Learn what an ignition coil is, what it does in a car engine, its internal parts, and how it steps up battery voltage to fire the spark plugs.
What Is TPMS? How Tire Pressure Monitoring Systems and Sensors Work
Plain-English explainer of TPMS: what it means, where tire pressure sensors sit, direct vs indirect systems, how readings reach the dash, and what it can't tell you.
What a Car Radiator Is and How It Cools Your Engine
Learn what a car radiator is, what is inside it, and how coolant flow and airflow carry engine heat away with help from the thermostat, fan, hoses and water pump.
What Is Transmission Fluid and What Does It Do?
A beginner explainer of transmission fluid and ATF: what it is, the jobs it does inside an automatic gearbox, the main fluid families, and how to find the right type.
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