TM 5-4320-302-14
Table 5-1. Direct Support Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 4. Check for malfunctioning governor.
Replace governor (para 6-13).
Step 5. Check for air in the fuel system.
Service fuel feed pump (para 4-34).
4. ENGINE STOPS RUNNING OR PRODUCES BLACK, WHITE, OR GREY SMOKE
Step 1. Check for faulty injectors. Remove and test injectors (para 5-16).
Repair or replace faulty injectors (para 5-16).
Step 2. Check for faulty fuel feed pump.
Repair or replace damaged fuel pump (para 5-15).
NOTE
The wrong grade of diesel fuel oil will also not undergo
complete combustion. This condition may result in black
or grey smoke.
5-4
