TM 5-3805-290-23-1
TROUBLESHOOTING WITHOUT A DIAGNOSTIC CODE - CONTINUED
0008 00
Table 1. Engine Troubleshooting - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
7. Perform Engine Oil Pressure Test (WP 1. If oil pressure is low, replace engine oil
10. Engine Has Early Wear -
pump (WP 0160 00).
Continued.
2. If problem still exists, replace engine
(WP 0145 00).
1. Check restriction indicator on air
1. If restriction is indicated, clean or
11. Excessive Black Smoke.
cleaner (TM 5-3805-290-10).
replace air cleaner elements (WP 0032
00), remove any blockages or
restrictions, and replace damaged air
inlet and exhaust system lines or hoses
(WP 0033 00 and WP 0041 00).
2. If problem still exists, go to Test 2.
2. Check 5V supply for engine boost
If problem still exists, go to Test 3.
pressure sensor. Refer to 5V Engine
Pressure Sensor Supply Circuit Test
3. Perform Compression Test (WP 0010
1. If compression on one or more
cylinders is low, replace engine (WP
0145 00).
2. If compression is OK, but problem still
exists, go to Test 4.
4. Inspect turbocharger, drain, wastegate, 1. If necessary, replace turbocharger,
and mounting bolts (WP 0165 00).
adjust wastegate, tighten bolts, or
unblock restricted drain.
2. If problem still exists, go to test 5.
5. Connect MSD and check for correct
If diagnostic codes are present, engine
engine serial number, arrangement
ECM must be programmed with correct
number, and software. Use ET to verify information (WP 0053 00).
any active diagnostic codes (WP 0006
N OT E
12. Excessive White Smoke.
Some white smoke may be present during cold start-up conditions when
engine is operating normally. If white smoke persists, there may be a prob-
lem.
1. Visually check fuel tank for fuel (fuel
1. Add fuel if necessary (TM 5-3805-290-
gage may be faulty).
10).
2. If problem still exists, go to Test 2.
2. Perform Fuel System Pressure Test
If problem still exists, go to Test 3.
3. Perform Fuel Quality Test (WP 0011
If problem still exists, go to Test 4.
