Table 4-1. Engine and Engine Systems Troubleshooting (Continued).
TEST OR INSPECTION.
5. HIGH OIL CONSUMPTION:
Check for overfilling.
Check oil level.
Determine that you have proper dipstick by matching against known
Check service records to determine that proper viscosity of oil is in use. (Refer to
Check engine for external oil leaks with engine running.
Refer to Direct Support Maintenance for repair of oil leaks.
6. INTERMITTENT LOSS OF POWER:
Refer to steps 1, 3 and 4 of Malfunction 2.
Check fuel tank air vent.
Remove air vent (refer to para 4-23); then clean.
Refer to step 6 of Malfunction 2.
Refer to Direct Support Maintenance.
7. SUDDEN LOSS OF POWER:
Check fuel level in tank.
Check for exhaust restriction.
Check for loose baffles. Replace muffler if damaged (para 4-37).
Check for damaged exhaust stack. Replace.
Check for dirty fuel filter.
Service fuel filter (para 4-18).
Check for leaking fuel lines.
Tighten connections or replace fuel lines as required (para 4-20).
Check for air cleaner element restriction.
Service air cleaner element as necessary (para 4-24).
Check for congealed fuel (cold weather).
Check fuel specification (refer to TM 9-2320-273-10).