TROUBLESHOOTING PROCEDURES - CONTINUED
Table 1. Engine Troubleshooting Procedures - Continued.
TEST OR INSPECTION
2. Open left-side door assembly 1. If fuel lines or fittings are loose,
Engine is Sluggish - Continued.
(TM 5-3895-379-10). Check fuel
tighten. If fuel lines or fittings are
lines and fittings for looseness
damaged, replace fuel lines (WP
and damage such as kinks, tears
2. If fuel lines or fittings are not loose
or damaged, go to Step 3.
1. If fuel lift pump outlet pressure is
3. Check fuel lift pump pressure.
below 4.5 (30 kPa), replace fuel
Remove fuel line from output
to 2. If time for maximum
output side of fuel lift pump.
noted during cranking to drop by
Turn battery disconnect switch to
one half is less than 30 seconds,
ON position and lock steering
frame (TM 5-3895-379-10).
Have assistant crank engine for
3. If lift pump pressure checks are
OK, install fuel line on fuel lift
Observe pressure gauge. Note
highest indication on pressure
gauge. Normal pressure is 6-10
psi (40-70 kPa). Minimum
pressure is 4.5 psi (30 kPa).
Turn engine start switch to OFF
position. Observe amount of time
for maximum pressure noted
during cranking to drop by one
half. Time should be greater than
Remove pressure gauge from fuel