D 150 Pickup V6-239 3.9L (1992)
5.
Place one end of hose (gauge end) into an approved gasoline container.
6.
Place a shop towel under the test port.
7.
To release fuel pressure, screw the other end of hose onto the fuel pressure test port.
8.
After fuel pressure has been released, remove the hose from the test port.
9.
Install protective cap to fuel test port.
