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Home >> Ford >> 1998 >> Econoline Custom >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 51 (Engine Controls - System & Component Tests - CNG) >> Fuel System >> Fuel Delivery >> System Integrity Check

System Integrity Check

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  1. Perform the following checks:
    • Visually inspect fuel system (fuel lines, filter, pump, injectors, pressure regulator, etc.).
    • Ensure Inertia Fuel Shutoff (IFS) switch reset button is not in upper (tripped) position.
    • Ensure battery is fully charged and fuel-related fuses are okay.
    • Check fuel tank contents and fuel gauge accuracy. On vehicles with 2 fuel tanks, check both tanks.

    If any fault is detected, repair as necessary. If system checks are okay, go to next step.

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