[cadillac512]

Hi Ryan.



First thing I'd check is the fuel line from tank to pump. You need a way to pull vacuum on that line after removing it from the fuel pump. A couple feet of hose and mouth suction will do, but some folks balk at that. Clear hose will let you know if fuel is coming and you'll see it before tasting it!
If that's ok you need to check vacuum on the suction side of the pump...should see 12+ inches of vac while cranking with your gauge on the suction side and the other side open.
If that's ok hook up the suction side and crank til you get fuel, then hook your pressure gauge to the carb side of the pump and crank it... looking for 2-6 lbs of pressure.

If you can suck fuel with a hose and the pump fails either vac or pressure tests,it's bad.


Oh...make sure the tank vent is working!



Terry