When you first start your car, the engine will usually start up with a low-pitched humming noise. This is called the L idle sound and it’s caused by the air/fuel mixture in the cylinders not being completely mixed yet. The L idle sound is meant to tell you that the engine is online and ready to run, but it might also make some people feel a bit uneasy. Let’s take a closer look at what it means and why it exists.
What is L and what does it mean on a car engine?
L is the letter that stands for “light” on a car engine. It’s used to indicate how much oil a car’s engine is using.
How to remove L from a car engine
If you see the letter L on a car engine, it means the engine is not equipped with a fuel injection system. Most modern cars have fuel injection systems, but some older models do not. If you see the letter L on a car engine, you might need to replace the engine.
What to do if L is left on a car engine
If your car’s engine has the letter “L” stamped on it, don’t ignore it. Leaving the letter on your engine could lead to costly repairs down the road. Here are four things you can do to keep your engine running safely:
1) Change the oil every 3,000 miles. This will help prevent wear and tear on the engine valves, as well as reduce emissions.
2) Keep the air filter clean. A dirty air filter can cause problems with your car’s engine.
3) Get your car serviced regularly. A bad tune-up or other minor repairs can lead to more serious problems down the road.
4) Replace the spark plugs every 10,000 miles. Replacing these plugs can help keep your engine running smoothly and prevent damage from occurring.