On the side of the road...

[Evotrucker]

I believe those quick disconnect have o rings on them. Check to see if you have any or just replace the quick disconnect fitting. When I broke mine of I had to replace the entire line because I couldn’t reach the pump, not enough length on the hose.... damn shame. I bought spare quick disconnect fittings just in case and some spare hose for emergencies.... I would also check those fuel lines for kinks and other stuff.