While replacing the fuel gauge sending unit today, we had to depressurize the fuel system.
So, like I've done before when changing the fuel filter, I pop the hood to depress the schraeder valve on the new tee for the fuel pressure gauge.
I removed the brass cap covering the valve and was shocked to have fuel squirting out under pressure.
The schraeder valve was loose. It was quickly tightened but be forewarned to make sure it'* tight if you install one.
Prior to the gauge being installed, when depressurizing, it would only squirt out a tiny bit of fuel. This time it seemed to never end. It must have peed out about a pint of fuel.
The mechanic had to attach a special hose & pump attachment to drain it all.
What do you think would have caused this