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Page Title:
Table 14. Engine System (DS) Troubleshooting Procedures. |
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 TM 10-3930-660-24-1
TROUBLESHOOTING PROCEDURES - CONTINUED
0006 00
Table 14. Engine System (DS) Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Perform the electrical system
1.
Engine Will Not Crank.
troubleshooting.
2. Check for engine seizure.
1. Remove fuel nozzles (WP
0223 00).
2. Try to turn crankshaft
manually.
3. If crankshaft turns and liquid
is discharged from nozzle
holes, determine if liquid is
coolant or fuel.
4. If liquid is coolant, replace
the cylinder head (WP 0211
00).
5. If liquid is fuel, test fuel
injection nozzles (WP 0223
00). Replace defective
nozzle(s) (WP 0223 00).
3. If crankshaft will not turn,
Remove engine (WP 0209 00
engine has internal damage
and WP 0210 00). Disassemble
and requires internal repair.
and check for bearing seizure
(WP 0272 00) or piston seizure
(WP 0276 00). Replace
components as required.
Check for possible dirty or
Replace/repair fuel injection
2.
Engine Cranks But Will Not Start.
damaged fuel injection nozzles.
nozzles, if necessary (WP 0223
00).
Check for overtightened,
Tighten, loosen or replace
3.
Rough Idle (Irregularly Firing or Engine
Shaking).
damaged or loose engine
mounts as required (WP 0211
mounts.
00).
Check relief valve (stuck open).
Replace relief valve (WP 0222
4.
Lubricating Oil Pressure Too Low.
00).
Check relief valve (stuck
Replace relief valve (WP 0222
5.
Lubricating Oil Pressure Too High.
closed).
00).
Check for loose, overtightened
Replace damaged engine
6.
Excessive Vibration.
or damaged engine mounts and
mounts (WP 0211 00).
vibration damper.
Table 15. Table Powertrain System Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Check for operation of
Replace or repair transmission
1.
Low Oil Pressure
transmission oil pump.
oil pump (WP 0240 00).
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