New Fuel Pump, No Fuel Pressure Diagnosis (Lincoln Towncar comeback)

Video Description

Is it a comeback? What did I do wrong? Did the new pump fail after only 2 months? Here is the link to the original repair https://www.youtube.com/watch?v=Tq1m3vzdVjo ScannerDanner Tools Pages: https://www.scannerdanner.com/tools.html https://www.amazon.com/shop/scannerdanner Video breakdown: - fuel pressure test 1:18 - testing for spark 4:46 - fuel pump relay testing 8:30 - relay to pump continuity test using a test light 10:40 - fuel pump tap test 13:29 - causes of new fuel pump repeat failures 15:08 - first check of power and ground at the fuel pump 18:14 - open circuit? must recheck with a known good ground 20:32 - testing the inertia switch 21:16 - direction change, importance of retracing steps 22:55 - known good ground retest of the fuel pump power 25:18 - open circuit identified, missing power to the pump 27:12 - where is the open? where does one start looking? 29:00 - visual inspection of the harness using the test light as a guide 33:17 - how to get paid on a "comeback" 39:00 - faulty connector identified 42:00 - connector terminal removal and tightening 45:16 - I am a dumb-ass 47:33 - pin drag test 49:00 - final thoughts 53:43 For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available at www.scannerdanner.com as an eBook or paper book. Want even more diagnostic training? Whether you are a DIY trying to fix your own car, someone looking to become an auto technician, or a current auto technician that wants to get more into diagnostics, subscribe to ScannerDanner Premium https://www.scannerdanner.com/join-scannerdanner-premium.html There is a 14 day free trial. On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. What is so special about these classroom case studies? I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. There is no better on-line training of how to troubleshoot automotive electrical and electronics systems anywhere! Disclaimer: Due to factors beyond the control of ScannerDanner LLC, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. ScannerDanner LLC assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. ScannerDanner LLC recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of ScannerDanner LLC, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not ScannerDanner LLC.