TM 9-6115-730-24
0011
TROUBLESHOOTING FAILURES WITHOUT FAULT CODES - Continued
NOTE
Use the following procedure whether the engine shuts down completely and had to be restarted
or if it falters and does not require restarting. If problem occurs only after engine is warmed up
and disappears after engine cools down, problem may be circuit breakers overheating. Check
carefully for hot spots and repair or replace, as required.
SYMPTOM
23.
Intermittent Engine Shut Downs.
MALFUNCTION
Electrical Connections Faulty.
CORRECTIVE ACTION
STEP 1.
On EMCP set ENGINE CONTROL switch to OFF/RESET. Set Battery
Disconnect Switch to OFF. Set DEAD CRANK SWITCH to OFF.
STEP 2.
Check for correct installation of ECM to EMCP harness connector ENG-P1 to
ECM J1 and of engine harness connector ENG-P2 to ECM J2 (cables plugged in
to ECM) (FO-2, sheet 1 and sheet 2, and WP 0088, figure 2, sheet 3). Plug
connectors in and torque the ENG-P1/J1 and ENG-P2/J2 connectors to 55 lb. in.
STEP 3.
Check engine harness timing sensor connectors ENG-P401 and ENG-P402 and
unit injector connector ENG-P300/J300. Plug connectors in securely.
STEP 4.
Verify connections between LSM pins A4-19 and A4-20 and the ECM input pins
ENG-P1-5 and ENG-P1-66 (FO-4, sheet 2 and FO-3, sheets 1 and 2). Look
specifically for intermittent connections. Repair or replace wiring, as required
STEP 5.
Refer to Low power/poor or no response to throttle troubleshooting procedure
SYMPTOM 22.
STEP 6.
Check load. Verify load is not causing problem. Replace or reconfigure load.
STEP 7.
Verify the problem has been resolved.
SYMPTOM
24.
Excessive Black Smoke.
MALFUNCTION
Air Inlet Problem.
CORRECTIVE ACTION
STEP 1.
Check the air inlet and exhaust for restrictions and leaks.
a.
Check for a restriction in the air inlet. Inspect and clear the obstruction.
b.
Clean or replace air inlet filter (WP 0071).
0011-29
