2013 gl450 FORD
not my vehicle, a friend has a 2013 gl450 died on the way to work. Her husband is a car guy like me so he towed it home and checked the codes.
P0456 small leak detected in fuel tank
P0087 low fuel pressure detected at the fuel delivery pressure sensor
p0442 small leak in fuel tank detected
my initial guess would be the high pressure fuel pump is toasted. Kinda weird to see these codes on the gasoline engine. Anyone here had ever seen these codes on their truck? What could cause them? Thank you




P0087 - Low Pressure in Fuel Line
Two High Pressure Pumps. If one "dies" - usually limp mode - but still working (like crap).
There is a a third fuel supply low pressure pump in fuel tank itself. That one probably gone.




