TM 5-3895-385-23-1
0040
Table 1. SPN#157, FMI#18 ― Fuel Pressure Lower Than Commanded Pressure -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. If engine starts and fuel
pressure at fuel filter inlet is not
between 73 psi (503 kPa) and
189 psi (1303 kPa), turn keyless
engine switch to OFF position
(TM 5-3895-385-10), and
replace fuel pump (WP 0329,
Vol 2).
4. If engine does not start and fuel
filter inlet pressure at engine
cranking is not between 44 psi
(303 kPa) and 160 psi (1103
kPa), turn keyless engine switch
to OFF position (TM 5-3895-
385-10), and replace fuel pump
(WP 0329, Vol 2).
3. Remove pressure gauge and
adapter and connect fuel filter
inlet line to fuel filter head.
Disconnect fuel filter outlet line
from fuel filter head. Attach fuel
pressure gauge and adapter
(WP 0448, Vol 3, Figure 56).
4. Start engine (TM 5-3895-385-
1. If pressure difference between
10) and run at idle, or if engine
fuel filter head outlet and fuel
fails to start, measure pressure
filter head inlet is greater than
while cranking.
29 psi (200 kPa), turn keyless
engine switch to OFF position
(TM 5-3895-385-10), and
replace spin-on fuel filter (WP
0339, Vol 2).
2. If pressure difference between
fuel filter head outlet and fuel
filter head inlet is less than 29
psi (200 kPa), turn keyless
engine switch to OFF position
(TM 5-3895-385-10), restore
equipment to original condition,
and proceed to next malfunction.
4. Reduced fuel inlet side fuel
1. Inspect fuel pump for damage.
1. If damaged, replace fuel pump
pressure low.
(WP 0329, Vol 2).
2. If not damaged, proceed to next
test.
0040-4
