16. Combustion Gas In The Fuel Rail Test: Purpose:
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2007 Ford RV Cutaway, 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Econoline. However, it is still accessible from the selected car via links, so may be relevant.
The purpose of this test is to check if any combustion gas leaks past the injector's needle and seat or past the copper combustion gasket.
| Combustion Gas Leaking In the Fuel Rail | |
|---|---|
| Bank 1 | Bank 2 |
| Cylinder 1 (YES/NO) | Cylinder 2 (YES/NO) |
| Cylinder 3 (YES/NO) | Cylinder 4 (YES/NO) |
| Cylinder 5 (YES/NO) | Cylinder 6 (YES/NO) |
| Cylinder 7 (YES/NO) | Cylinder 8 (YES/NO) |
Carry out the Combustion Gas In The Fuel Rail Test to verify the repair.
When the repair is verified carry out the Electric Fuel Pump Pressure test.