TM 5-3895-385-23-1
0075
Table 1. SPN#1326, FMI#31 ― Engine Misfire Cylinder 4 -- Condition Exists -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
5. Start engine (TM 5-3895-385-
10) and run at idle.
6. Loud engine knock occurs.
1. If loud engine knock is present,
turn keyless engine switch to
the OFF position (TM 5-3895-
385-10), and proceed to engine
noise symptom tree (WP 0085).
2. If loud engine knock is not
present, turn keyless engine
switch to the OFF position (TM
5-3895-385-10), and proceed to
next malfunction.
2. Failed or damaged fuel injector.
1. Start engine (TM 5-3895-385-
10) and run at idle.
2. Check for cylinder misfire, black
1. If the cylinder misfire has been
or white smoke, engine
detected, turn keyless engine
stumble, or rough idle.
switch to the OFF position (TM
5-3895-385-10), and replace
fuel injector on misfiring cylinder
(WP 0338, Vol 2).
2. If no cylinder misfire is
detected, proceed to next test.
3. Remove the fuel injector supply
line connecting the rail to
cylinder number 4 (WP 0331,
Vol 2).
4. Install fuel injection test
equipment to cylinder number 4
fuel rail outlet. Torque to 29
foot-pounds (ft-lb) (35 Newton
meters (Nm)) (WP 0448, Vol 3,
Figure 52).
5. Start engine (TM 5-3895-385-
10) and run at idle.
6. Check active engine faults
1. If fault code SPN#1326, FMI#31
screen for fault code
is displayed, turn keyless
SPN#1326, FMI#31.
engine switch to the OFF
position (TM 5-3895-385-10),
and replace cylinder number 4
injector (WP 0338, Vol 2).
0075-2