In this video Andy Phillips shows how to diagnose and test a bad fuel filter. These simple tests will help you diagnose properly so you don't waste money on wrong parts. Below are links to some of my videos pertaining to the fuel system.. How To Diagnose A Bad Fuel Pump: https://www.youtube.com/watch?v=DbSN7qooFSA How To Diagnose A Bad Fuel Pressure Regulator: https://www.youtube.com/watch?v=G6610136mjE OBD2 Bluetooth Scanner - Product Review: https://www.youtube.com/watch?v=-xc4GB4lpTY How To Check Fuel Pressure: https://www.youtube.com/watch?v=rAJOSQcmnqA How to Check Fuel Pressure Without A Schrader Valve: https://www.youtube.com/watch?v=p1CgodbwLe0 Releasing Fuel Pressure Without A Schrader Valve: https://www.youtube.com/watch?v=XX58ZFZLy6E How To Install An Inline Fuel Check Valve: https://www.youtube.com/watch?v=STIQa1ct_5s How To Diagnose Fuel Pressure Drop: https://www.youtube.com/watch?v=9lS33ZZ6tLk DISCLAIMER: The individual featured on the Phillips Vision YouTube Channel identified as Andrew Phillips, also known as Andy Phillips is not a professional mechanic, contractor or certified repairman. He does not have any formal training in the automotive field, or any other trade. He is strictly a Do It Yourself handyman. Phillips Vision, or the individuals featured on this channel, assume no liability for anything you choose to do to your vehicles, appliances, games or any other items featured in the videos before, or after watching one of the videos or utilizing the content from this channel. All Do it Yourself (DIY) repairs or modifications you perform are at your own risk. In some cases, even if you perform everything properly, you can destroy or damage one or more things you are working on resulting is costly repairs. In addition, if for some reason, the instructions on this channel are incorrect, resulting it something becoming damaged, Phillips Vision and those featured on this channel WILL NOT reimburse or pay in any way the costs that may be incurred due to following wrong instructions. PLEASE DO NOT PERFORM ANYTHING SHOWN ON THIS CHANNEL (PHILLIPS VISION) UNLESS YOU FEEL COMFORTABLE AND CONFIDENT TO DO SO.