Recommended Procedure
WARNING: This page is about a different car, the 2008 Ford Pickup, 2008 Ford F550 Super Duty, 2008 Ford F450 Super Duty, and 2008 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Follow the scan tool directions when carrying out the high pressure fuel system test.
This test determines if the high pressure fuel system is able to maintain the requested fuel pressure for a calibrated amount of time.
- Turn off all accessories. If the vehicle is equipped with a PTO system or auxiliary idle control, it must be turned off to carry out the high pressure fuel system test. Refer to the scan tool operating article for instructions.
- Key in OFF position.
- Carry out the high pressure fuel system test.
- Visually check for engine compartment fuel leaks during this test.
- If visible fuel leaks are present refer to FUEL SYSTEM - GENERAL INFORMATION - GASOLINE AND DIESEL -- F-250-550 (SUPER DUTY PICKUPS) .
- If the measured variation is outside of the specifications and no visible fuel leaks are present refer to PINPOINT TEST ME - FUEL PUMP CONTROL - HIGH PRESSURE PUMP .