SECTION 5
TROUBLESHOOTING
5 - 1 . GENERAL.
countered, the probable causes of the trouble, and
5-2, Tables 5-1 through 5-9 are trouble analysis
the corrective action that should be taken to restore
check charts for the individual systems. These ta-
the unit to normal operating condition.
bles list the most common troubles that may be en-
TABLE 5-1
TROUBLE ANALYSIS FOR DETROIT DIESEL ENGINE.
CORRECTIVE ACTION
PROBABLE CAUSE
TROUBLE
Check engine fuel pump and all
Engine Will Not
Low fuel pressure.
hose connections.
Start Or Starts
Hard.
Fill tank and bleed the fuel system.
No fuel in the tank.
Clean primary filter, change second-
Plugged or restricted fuel filters,
ary filter.
both primary and secondary.
Bleed the fuel system. If system
Air in the fuel system.
becomes aerated again, check for
air leaks on pick-up side of the
transfer pump. Repair OS necessary.
Clean lines and tank.
Plugged or restricted fuel lines.
Repair or replace pump.
Fuel transfer pump excessively worn.
5-1.
