Engine sensors measure conditions such as airflow, temperature, pressure, and shaft position so the control unit can manage the engine. Which sensors a car has depends on its design. There is no ...

A sidewall bulge, puncture, deep cut, or exposed cords means the tire should be taken out of service. Standard puncture repairs for passenger tires are limited to the tread area, so don’t glue or ...

A temperature gauge that moves up and down can indicate low coolant, air in the system, a sticking thermostat, or a sensor or wiring fault. If it reaches hot or red, or an overheating warning appears, ...

For a conventional 12-volt battery, follow your owner’s manual, switch the vehicle off, and disconnect the negative cable first, then the positive. Wear eye protection and keep tools from bridging a ...

A flashing VSC indicator often means the system is responding to wheel slip. A steady VSC warning or “Check VSC System” message may mean the system is off or has a fault. Check your Toyota’s manual ...

Our overall pick is the Stinger Pro 2 Smoke Machine. If you’re comparing smoke machines, consider how often you’ll use it, what adapters are included, and whether it suits the systems you need to test ...

The 3M Headlight Lens Restoration Kit is our top choice for restoring cloudy headlights. Compare the steps and supplies in each kit, especially the finishing protection, to find one that matches the ...

For a quick, easy-to-read pressure check, our top pick is the AstroAI Digital Tire Pressure Gauge. We also compare other styles, so you can choose one that suits how often and where you check your ...

Everyone knows it’s important to change the oil every few thousand miles, but one fluid that often gets forgotten is the antifreeze – or coolant. Even though it’s easy to overlook, antifreeze plays a ...

The most common signs of an overcharging alternator include flickering or unusually bright headlights and dashboard lights. You might also see warning lights on the dash, experience shorter bulb life, ...

The car battery is a part that only lasts so many years. It’s not going to last the lifetime of the vehicle. As soon as it starts to die, it’s important to replace it so you aren’t left stranded. How ...

The throttle body is an important mechanical component found in fuel-injected vehicles that controls and regulates the amount of air flowing into the engine. When the throttle body is in its ...