Your car's engine is not a self-contained unit. It needs fuel and air to function properly.

No engine is completely perfect when it comes to burning the mixture of gasoline and oxygen that is directed to the pistons.

After the winter, many drivers will wash, wax and detail their vehicles, but many forget to pop the hood and tackle the accumulation of dirt and debris that may have built up over the winter months.

Core plugs may go by many names, from freeze plugs to expansion plugs and casting plugs, but they are not a commonly-discussed part of an engine.

If you've noticed that your car is acting strangely when the engine is idling, there could be a number of problems causing the issue.