If I remove the schraeder valve from the test port, anyone know what thread the fitting on the tube is? I'd like to put a fuel pressure gauge on there so I can see lift pump pressure, but want to be sure that I can get the correct sender or adapter.
LLY: Fuel pressure test port thread?
- Thread starter thunder550
- Start date
I'll try to take a pic of what I did on my truck in the morning. I drilled and tapped the top banjo bolt on the ficm. Not that there is anything wrong with any adapters that thread into the filter head or test port. I'm just to impatient to wait for anything
Remove the test port, cut it right above the hex, and drill and tap it for 1/8" npt, most gauges use 1/8" npt
That test port is just attached to the end of a rubber hose with a little clamp. If you have any barbed hose fittings for your fuel pressure gauge, you're all set.
Well, crap. I've touched every nut & bolt on my truck, and figured his LLY was the same. Sorry Chris!