The engine control module (ECM) uses two O2 sensors, one in front, and one behind the catalytic converter to measure its efficiency. If the catalyst system efficiency is low, the P0420 code will be ...

Mechanic Base is supported by its audience. If you buy through links on this page, we may earn a small commission. The debate surrounding synthetic motor oils is a longstanding one. You’ll most ...

If you’re a car owner, then you’ve probably given some thought to the different types of cars out there. Each one has its own unique set of features and benefits, so it can be tough to decide which ...

We’re all familiar with that moment of uncertainty when a warning light flashes on our car’s dashboard. It leaves us scrambling for the manual, attempting to decipher what the illuminated symbol ...

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With the firing of the cylinders off-track, the engine is going to run rough. You may notice it more when the engine is idling. In fact, the idle can become so bad that you think the motor might stall ...

The air-fuel mixture in a gasoline engine must be properly ignited for the engine to run smoothly. When the ignition pack doesn’t operate as it should, this mixture can’t ignite. The result is a ...

A car’s throttle body contains a butterfly valve that alters how much air enters the engine. With fuel injection, the throttle position sensor and the air-flow sensor must communicate to ensure a ...

When the wheel bearings start to make a rumbling sound, it’s time to replace them.Both companies provide hub assemblies and wheel bearings that meet OEM specifications. Mevotech offers a ...

The fuel filter is responsible for keeping contaminants from getting out of the fuel tank into the engine. It filters out impurities and debris from the gasoline that are much smaller than sugar ...