This fuel leak only occurs when towing.. Good size leak on my 04 and shows up by starter. Fuel filter is tight no fuel on firewall and fuel logs on top look good including tubing to injectors. Leak appears to be coming from between block and head by rear glow plug passenger side. Pressure washed everything and road tested no trailer 65 miles no leak. Hooked up trailer 6 miles and underside of passenger side soaked ? Any help been chasin this one 2 weeks now..
Thanx Fellers..........