ARMY TM 9-2815-260-24 AIR FORCE TO 38G1-126-2 MARINE CORPS TM 09244A/09245A-24 3-6 TABLE 3-2.  UNIT TROUBLESHOOTING (Sheet 3 of 11) OK   Not OK   OK   Not OK   ENGINE MISFIRES OR RUNS ERRATICALLY OR STALLS FREQUENTLY Engine misfires or runs erratically of stalls frequently. Test fuel transfer supply pump (refer to paragraph 3.12.3). Replace fuel transfer supply pump   (refer to paragraph 3.12.3). Bleed fuel lines (refer to paragraph 3.12.1). Check for evidence of air bubbles or fuel line obstruction. Check for low coolant temperature (refer to TM 9-6115-672-14 or other applicable TM). Replace defective thermostat (refer to paragraph 3.8.2). Perform end item troubleshooting procedures (refer to TM 9-6115-672-14 or other applicable TM). Unblock or replace fuel line(s) (refer to paragraph 3.12.4). Bleed fuel lines (refer to paragraph 3.12.1). Notify next higher level of maintenance. OK   Not OK