Help needed please
Writing this for my husband - we own a 2005 340 Dancer. 8.1 496’s Gen 3 cool fuel pumps. It will support 50-60 PSI’s fuel pressure - at idle speed approximately 25-30 minutes in, fuel pressure drops to 5 PSI’s, all at idle speed. - both engines die completely. Cruising speed runs great! Any ideas or suggestions as to what might the problem be? In advance all help appreciated!
