What a Car Spark Plug Is, How It Works and Where It Is Located
Learn what a spark plug does in a car, how it fires the air-fuel mixture, where it sits in the engine and what changes by engine type and model year.
Car blog Page 188
Practical automotive articles on maintenance, diagnostics, vehicle systems, buying used cars, tires and electric driving.
Best Digital Tire Pressure Gauge: Accuracy, Range and Reviews
How to choose a digital tire pressure gauge: what it measures, accuracy versus resolution, range, valve fit, and how to compare readings with your vehicle specification.
Chevy Malibu Shift Lock Release: How to Release the Selector
Learn how to use the Chevy Malibu shift lock override to move a stuck selector out of Park, what the shifter's response tells you, and what to check before repairs.
Tahoe Magnetic Ride Control: Equipment and Buying Considerations
How Magnetic Ride Control works on a Chevy Tahoe, how to confirm replacement damper fitment, which features matter, and what ownership realistically costs.
Tire Tread Depth Gauge: How to Choose, Use and Read One
How a tire tread depth gauge works, which type fits your car, truck or motorcycle, how to measure correctly, and what the readings mean for tire replacement.
Quick-Disconnect Sway Bar Links: Choosing a Compatible Set
Learn how to choose quick-disconnect sway bar links that fit your vehicle, lift height and driving style, plus the features, limits and upkeep to expect.
Car water pump: what it does, how it works, parts and diagram
Learn what a car water pump does, how its impeller moves coolant through the engine, what its main parts are and which warning signs owners can safely check.
Best Car Subwoofers: How to Choose
Choose a car subwoofer that fits your listening goals, space, head unit and electrical system. Compare enclosure types, power, impedance and integration before you buy.
7-Pin (7-Way Blade) Trailer Connector Wiring Diagram
7-way blade trailer connector pinout by function and color, how each circuit is powered, what varies between vehicles, and how to test and wire it safely.
Best Tire Pressure Gauge for Cars: How to Choose and Read One
How to choose a tire pressure gauge for your car by range, accuracy, units and chuck fit, and how to read it against your vehicle's cold inflation specification.
How a Car Oxygen Sensor Works
Learn what an oxygen sensor in a car does, how it reads exhaust oxygen, why upstream and downstream sensors differ, and how to diagnose a faulty sensor safely.
Testing a Car Battery With a Multimeter: Readings and What They Mean
How to test a 12-volt car battery with a multimeter: resting, cranking and charging voltage, voltage drop and parasitic draw, and what each reading tells you.
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