4-20
Copyright 2017 Cummins Inc.
TABLE 4-10. ENGINE CRANKS BUT DOES NOT START
WARNING
Many troubleshooting procedures present hazards that can result in severe personal inju-
ry or death. Only qualified service personnel with knowledge of fuels, electricity, and machinery haz-
ards should perform service procedures. Review Important Safety Instructions page.
2. The fuel rack could be binding, loose,
or damaged.
2. Perform the Rack Position Fault/Test Proce-
dure at the end of this section.
1. Restricted fuel supply due to:
a. Fuel level below pickup tube in
tank.
b. Closed shutoff valve in supply
line.
c. Fuel injectors clogged.
d. Air in fuel system.
1a. Add fuel if low. Prime the fuel system.
1b. Open any closed shutoff valve in the fuel line
supplying the engine.
1c. Refer to engine service manual.
1d. Bleed air from fuel system. Refer to engine ser-
vice manual.
Indicator(s) Possible Cause Corrective Action
“OVERCRANK”
(222)
message
−and
While cranking,
Run LED DS12
on the
engine interface
board (A31)
is on.
and
While cranking,
Run LED DS2
on the
governor output
module (A38)
is on.
NOTE:
These
indications
suggest that the
PCC has sent a
run signal to the
fuel solenoid.
3. Fuel solenoid (K1 and K4) on the injec-
tion pump not energized due to:
a. Open in fuel solenoid circuit or
defective governor module.
b. Defective fuel solenoid.
3a. Reset the control. Attempt to start and check for
B+ at the K1 and K4 fuel solenoid coil on the in-
jection pump and at output of governor module.
Check continuity from J6-20 and 21 to J6-19.
3b. Check wiring continuity of fuel solenoid circuit.
Test fuel solenoid.
Repair or replace as necessary.
5. Engine fuel injection or other engine
problem.
4. Fuel tank solenoid not energized due
to:
a. Open in fuel tank solenoid circuit.
b. Defective fuel tank solenoid.
5. Refer to the engine service manual.
4a. Check wiring continuity of fuel tank solenoid cir-
cuit.
4b. Test fuel tank solenoid.
Repair or replace as necessary.
Fuel supply or fuel delivery.
*CAUTION: Wearing a wrist strap, set S12 to Off and A32 S5 to Standby before connecting/disconnecting harness plugs.
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