Knowing how your car's fuel pump operates is always helpful, but here are very convenient ways to check if it is broken or has stopped working.

It's easy to overlook fuel filter replacements, but depending on your car make and model, it may be due for a new fuel filter to keep it running.

If you find the fuel pressure falls away under heavy acceleration, and the fuel filter is good (new), a faulty fuel pump or clogged fuel pump strainer is the most likely cause.

Basically, it's good to be religious about fluid and filter changes, when it comes to getting maximum life and performance from any engine. This statement is very true with diesel fuel.