TM 5-3805-291-23-1
TROUBLESHOOTING WITHOUT A DIAGNOSTIC CODE - CONTINUED
0008 00
Table 1. Engine Troubleshooting - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
12. Check calibration of speed/timing
1. If faulty, recalibrate or replace speed/
11. Excessive Black Smoke -
sensors (WP 0013 00).
timing sensors (WP 0076 00 and WP
Continued.
0078 00).
2. If problem still exists, go to Test 13.
13. Verify proper orientation of crankshaft If problem still exists, replace engine (WP
and camshaft gears (WP 0186 00).
0171 00).
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
problem.
1. Check for fuel supply lines that are
1. Replace or repair any restricted fuel
restricted (WP 0034 00).
lines.
2. If problem still exists, go to Test 2.
2. Perform Fuel System Pressure Test
If problem still exists, go to Test 3.
3. If temperature is below 32F (0C),
1. If solidified fuel is present, drain and
check for solidified fuel (wax) in tank.
fill tank (WP 0033 00).
2. If problem still exists, go to Test 4.
4. Perform Fuel Quality Test (WP 0011
If problem still exists, go to Test 5.
00).
5. Check calibration of speed/timing
If faulty, recalibrate or replace speed/
sensors (WP 0013 00).
timing sensors (WP 0076 00 and WP 0078
00).
6. Check for internal coolant leaks (WP
If problem still exists, go to Test 7.
7. Connect MSD (WP 0005 00) and verify 1. If necessary, re-flash ECM (WP 0057
correct flash file is installed.
00).
2. If problem still exists, go to Test 8.
8. Use MSD to check coolant temperature 1. If faulty, replace coolant temperature
sensor.
sensor (WP 0077 00).
2. If problem still exists, go to Test 9.
9. Use MSD to perform Cylinder Cutout
1. Check and adjust valve lash (WP 0179
Test.
00).
2. If problem still exists, go to Test 10.
10. Verify proper orientation of crankshaft 1. Re-time gears, if necessary (WP 0186
and camshaft gears (WP 0186 00).
00).
2. If problem still exists, replace engine
(WP 0171 00).
