ARMY TM 9-2815-252-24 AIR FORCE TO 38GI-92-2 SECTION II.  TROUBLESHOOTING 3-2.  TROUBLESHOOTING PROCEDURES. 3-2.1.  Purpose of Troubleshooting Table.  This section contains troubleshooting information for locating and correcting operating  troubles  which  may  develop  in  the  engine.    Each  malfunction  for  an  individual  component  unit  or  system  is followed by a list of tests or inspections which will help you to determine probable causes and corrective action to take. You should perform tests/inspections and corrective actions in order listed. This table cannot list all malfunctions that may occur, nor all tests or inspections and corrective actions.  If a malfunction is not listed or cannot be corrected by listed corrective actions, notify your supervisor. NOTE Before you use this table, be sure you have performed your PMCS.  Prior to performing troubleshooting  procedures  within  this  manual,  perform  your  operator's  troubleshooting and the end item maintenance manual troubleshooting procedures. SYMPTOM INDEX Malfunction Troubleshooting Procedures Page Engine Will Not Crank ........................................................................................................................ 3-3 Starter Operates But Will Not Turn Over  ............................................................................................ 3-3 Engine Hard to Start or Will Not Start ................................................................................................. 3-3 Engine Hard to Start or Will Not Start In Cold Weather  ................................................................................................................................. 3-5 Engine Misfires or Runs Irregularly or Stalls Frequently ............................................................................................................ 3-5 Engine Does Not Develop Full Power ................................................................................................. 3-6 Engine Overheating ............................................................................................................................ 3-7 Excessive Oil Consumption ................................................................................................................ 3-8 Low Oil Pressure  ................................................................................................................................ 3-9 Excessive Fuel Consumption  ............................................................................................................. 3-10 Black or Gray Smoke  ......................................................................................................................... 3-11 Blue Exhaust Smoke .......................................................................................................................... 3-11 Abnormal Engine Noise ...................................................................................................................... 3-12 Detonation or Pre-Ignition  .................................................................................................................. 3-14 Engine Vibrating ................................................................................................................................. 3-14 3-2