ARMY TM 9-2815-255-24
AIR FORCE TO 38G1-95-2
MARINE CORPS TM 2815-24/4
TABLE 3-2. Troubleshooting - Continued
TEST OR INSPECTION
Step 2. Refer to Malfunction 3, and perform steps 1 thru 6.
5. ENGINE MISFIRES OR RUNS IRREGULARLY OR STALLS FREQUENTLY.
Step 1. Check for fuel being supplied to fuel injection pump.
Test fuel supply pump capacity. Refer to paragraph 3-25.2. If supply pump not
defective, do step 2.
Repair or replace fuel supply pump. Refer to paragraph 3-25.
Step 2. Check for air in fuel system lines.
Bleed fuel system. Refer to paragraph 3-23. If no air, do step 3.
Step 3. Check for low coolant temperature.
If coolant temperature not low, do step 4.
Replace defective thermostat. Refer to paragraph 3-9.
Step 4. Check for fuel injector nozzle dirty, defective, or leaking.
Remove, clean, and test fuel injector. Refer to paragraphs 3-29.1., 3-29.2.,
and 3-29.3. If not defective, do step 5.
Replace fuel injector nozzle. Refer to paragraph 3-29.
Step 5. Check for improper fuel injection pump timing.
Adjust fuel injection pump timing. Refer to paragraph 3-28. If adjusted properly, do
Step 6. Check for defective fuel injection pump.
Test fuel injection pump. Refer to paragraph 3-27.7. If not defective, do step 7.
Replace fuel injection pump. Refer to paragraph 3-27.
Step 7. Check for valves properly adjusted.