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ARMY TM 9-2815-256-24 AIR FORCE TO 38G1-96-2 MARINE CORPS TM 2815-24/5P Table 3-2.  Troubleshooting - Continued MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 4.  ENGINE HARD TO START OR WILL NOT START IN COLD WEATHER. Step 1. Check for faulty cold start system. a. Refer to end item maintenance manual.  If not defective, do step 2. b. Repair cold start system.  Refer to end item maintenance manual. Step 2. Refer to Malfunction 3, and perform steps 1 thru 6. 5.  ENGINE MISFIRES OR RUNS IRRFGULARLY OR STALLS FREQUENTLY. Step 1. Check for fuel being supplied to fuel injection pump. a. Test fuel supply pump capacity.  Refer to paragraph 3-25.2.  If supply pump not defective, do step 2. b. 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. a. If coolant temperature not low, do step 4. b. Replace defective thermostat.   Refer to paragraph 3-9. Step 4. Check for fuel injector nozzle dirty, defective, or leaking. a. 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. b. 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. 3-5


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