TM 5-3895-385-23-1
0039
Table 1. SPN#157, FMI#16 ― Fuel Pressure Higher Than Commanded Pressure -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. Attach pressure gauge and
adapter between the fuel return
manifold and the fuel drain line
(WP 0448, Vol 3, Figure 49).
4. Start engine (TM 5-3895-385-
1. If fuel pressure is more than 2.7
10), and run at idle. Measure
psi (18.6 kPa), turn keyless
the fuel return drain line
engine switch to OFF (TM 5-
pressure.
3895-385-10), restore
equipment to original condition,
and proceed to next
malfunction.
2. If fuel pressure is less than 2.7
pounds per square inch (psi)
(18.6 kiloPascals (kPa)), turn
keyless engine switch to OFF
(TM 5-3895-385-10), and
replace fuel pump actuator (WP
0330, Vol 2).
4. Fuel metering pump fault.
1. Inspect high-pressure fuel
1. If damaged, replace the high-
pump for damage or leaking.
pressure fuel pump (WP 0329,
Vol 2).
2. If not damaged, proceed to next
test.
2. Turn keyless engine switch to
the AUX position (TM 5-3895-
385-10), but do not start engine.
Wait 30 seconds.
3. Check active engine faults
1. If fault code SPN#157, FMI#16
screen for fault code SPN#157,
is displayed, turn keyless
FMI#16.
engine switch to OFF (TM 5-
3895-385-10), and replace the
high-pressure fuel pump (WP
0330, Vol 2).
2. If fault code SPN#157, FMI#16
is not displayed, turn keyless
engine switch to OFF (TM 5-
3895-385-10). No fault present;
restore equipment to original
condition.
END OF WORK PACKAGE
0039-4
