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
9. Start engine (TM 5-3895-385-
1. If fuel flow is greater than 120 ml
10) and run at idle for 60
per minute (4 fluid ounce (fl-oz)
seconds, or if engine fails to
per minute) maximum at idle or
start, measure fuel flow output
90 ml per minute (3 fl-oz per
while cranking for 60 seconds.
minute) maximum while
cranking, turn keyless engine
switch to OFF position (TM 5-
3895-385-10), and proceed to
next malfunction.
2. If fuel flow is equal to or less
than 120 ml per minute (4 fl-oz
per minute) maximum at idle or
90 ml per minute (3 fl-oz per
minute) maximum while
cranking, turn keyless engine
switch to OFF position (TM 5-
3895-385-10), and replace fuel
pump (WP 0329, Vol 2).
6. Fuel injector faulted.
1. Remove the fuel injector
supply line connecting the rail
to cylinder number 1 (WP
0331, Vol 2).
2. Install fuel injection test
equipment tool to cylinder
number 1 fuel rail outlet.
Torque to 26 foot-pounds (ft-lb)
(35 Newton meters (Nm)) (WP
0448, Vol 3, Figure 52).
3. Start engine (TM 5-3895-385-
Record fuel flow reached, turn
10) and idle, or if engine fails to
keyless engine switch to OFF
start, measure fuel flow output
position (TM 5-3895-385-10), and
while cranking for 60 seconds.
proceed to next test.
4. Restore the fuel injector supply
line connecting the fuel rail to
cylinder number 1 (WP 0331,
Vol 2). Torque to 26 ft-lb (35
Nm).
0040-7
