A thermostat controls the coolant flow entering and leaving the engine, and the coolant temperature sensor records the coolant temperature by displaying it on the dashboard. With a malfunctioning ...

The manual transmission car is not as common as it once was, but there are still some on the road today. As part of the clutch pedal, there’s a throw-out bearing that can go bad. Because this vital ...

Many car owners overlook just how important a good oil filter really is. This small but crucial part keeps your engine running smoothly by trapping dirt, debris, and contaminants before they can cause ...

A charcoal canister, also known as the EVAP canister, is probably something you have heard about before, but you might never really have put a lot of effort into understanding what it is. It is not ...

Oil often leaks from the drain plug or a damaged oil pan. It can also seep from the oil pan gasket, the valve cover gasket, or through the oil filter. Other common sources include a clogged crankcase ...

When the check engine light comes on, it always grabs your attention. It’s designed to alert you that something isn’t right under the hood, but that doesn’t always mean it’s time to panic. Some causes ...

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 ...

Simple Green is our top pick for an engine degreaser. Compare the other products for application and cleanup, and follow the label to make sure the one you choose is suitable for the surfaces you plan ...

Are you struggling to figure out which O2 sensor or ignition coil you should replace? You are not alone. A diagnostic scanner can help you find car problems efficiently, but it can still be confusing ...

Our top torque wrench pick is the GearWrench Micrometer. Check that its torque range and drive size suit the work you do, then compare the other options for different budgets and uses. There are ...

A failing oxygen sensor may turn on the check-engine light, affect fuel economy, or contribute to rough running. These signs can also come from wiring, exhaust leaks, fuel, ignition, or other faults.

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 ...