Checking lifters is a crucial step in maintaining the health of your engine. Lifters are responsible for opening and closing the valves in your engine, and if they are not functioning properly, it can lead to a number of problems, including decreased engine performance, increased fuel consumption, and even engine damage.
There are a few different ways to check lifters, but the most common method is to use a stethoscope. To do this, simply place the stethoscope on the valve cover and listen for any unusual noises. If you hear any clicking or tapping noises, it is likely that your lifters are worn or damaged and need to be replaced.