Mustang V6-4.0L (2008)
6. Remove the air cleaner outlet tube.
7. Disconnect the fuel jumper tube-to-fuel rail quick connect coupling.
8. NOTE: Use a commercially available fuel test adapter (such as OTC(R) 18527).
Install the special tool and the fuel test adapter between the fuel jumper tube and the fuel rail.
All vehicles
9. Install the fuel pump (FP) fuse.
10. NOTE: It may take more than one key cycle to pressurize the fuel system.
Cycle the ignition key and wait 3 seconds to pressurize the fuel system. Check for leaks before starting the engine.
11. NOTE: After completing the fuel system pressure test, open the drain valve on the special tool and release any residual fuel into a suitable
container prior to removing the tool.
Test the fuel system pressure to make sure it is within the specified range.
