(1) Check fuel/water separator filter and
fuel filter for dirt and contamination.
(2) Position drain pan under filter.
(3) Remove filter element from base.
(4) Inspect for clogs and debris.
(5) If fuel water separator filter and/or
fuel filter is clogged, replace fuel/water
separator filter (para 4-13) and/or fuel
filter (para 4-14).
(1) Check fuel pressure regulating valve for
leaks or damage.
(2) If fuel pressure regulating valve is
damaged, replace fuel pressure regulating
valve (para 4-3).