ARMY TM 9-2815-254-24
AIR FORCE TO 38G1-94-2
Table 3-2. Troubleshooting - Continued
TEST OR INSPECTION
ENGINE HARD TO START OR WILL NOT START IN COLD WEATHER.
Check for faulty glow plugs.
Test glow plugs. Refer to paragraph 3-22.3. If glow plugs not defective, do step 2.
Replace defective glow plugs. Refer to paragraph 3-22.
Refer to Malfunction 3 and perform steps 1 through 5.
ENGINE MISFIRES OR RUNS IRREGULARLY OR STALLS FREQUENTLY.
Check for fuel being supplied to fuel injection pump.
Test feed pump capacity. Refer to paragraph 3-11.5 step aj. If feed pump not defective, do
Repair or replace fuel feed pump. Refer to paragraph 3-11.
Check for air in fuel system lines.
Bleed fuel system at fuel fitter. Refer to paragraph 3-12. If no air, do step 3.
Check for tow coolant temperature.
If coolant temperature not low, do step 4.
Replace defective thermostat. Refer to paragraph 3-6.
Check for fuel injector nozzle dirty, defective or leaking.
Clean and test fuel injector. Refer to paragraph 3-10. If not defective, do step 5.
Replace fuel injector nozzle. Refer to paragraph 3-10.
Check for improper fuel injection timing.
Check fuel injection timing. Refer to paragraph 3-13.1. If fuel injection timing is correct, do
Adjust fuel injection timing. Refer to paragraph 3-13.2.
Check for defective fuel injection pump.
Remove and test fuel injection pump. Refer to paragraph 3-11.5. If not defective, do step 7.
Replace fuel injection pump. Refer to paragraph 3-11.
Check for valves improperly adjusted.
Adjust valves. Refer to paragraph 3-26.6. if properly adjusted, do step 8.