Leaking Fuel Filler Neck at ryanjharrisono blog

Leaking Fuel Filler Neck. a common reason you'll get a p0440 code is because the fuel tank filler neck has a small leak in it. Research on other sites suggests that:

Fuel filler neck leaking? This replacement fuel filler neck is
from www.autoparts4less.com

there is no evidence of anything leaking while the truck is parked. This is probably a leak in either the fuel filler neck. if the fuel tank is leaking, it is a fire hazard and should be checked and repaired immediately.

Fuel filler neck leaking? This replacement fuel filler neck is

Leaking Fuel Filler Neck visible fuel leaks. a common reason you'll get a p0440 code is because the fuel tank filler neck has a small leak in it. 31k views 8 years ago. if the fuel tank is leaking, it is a fire hazard and should be checked and repaired immediately.