It’s something almost everyone with a driver’s licence does multiple times every year, but have you ever thought about how ...

Step 3: Pull the Fuel Pump Relay You don’t want the fuel pump ... and eventually turned it into a full-time career. His work can be found here and at BMWBlog.

What you’re probably hearing is the pump switching on to prime the engine’s fuel system so that it starts easily and promptly. Even though the engine isn’t running, when you switch the ignition on, ...