4–3
T-375
4.1.5
Malfunction In The Engine Starting Circuit
4.1.6
Miscellaneous Engine Troubleshooting
Starter motor turns, but pinion
does not engage
Pinion or ring gear obstructed or worn
Engine Manual
Starter motor does not
disengage after switch has
been released
Ignition switch is bad
Check / Replace
Starter motor solenoid is bad
Engine Manual
Pinion does not disengage
after engine is running
Starter is bad
Engine Manual
Table 4–4 Starter Motor Malfunction
Condition
Possible Cause
Remedy / Reference Section
Table 4–5 Malfunction In The Engine Starting Circuit
Condition
Possible Cause
Remedy / Reference Section
No power to starter motor
solenoid
Battery defective
Correct
Loose electrical connections
Tighten
Fuel solenoid does not
energize or does not remain
energized
Battery defective
Correct
Loose electrical connections
Tighten
Oil pressure switch defective
Water temperature safety switch open
Fuel solenoid defective
Engine Manual
Intake heater switch is bad
Check (Engine Manual)
Electronic Governor Module (EG) is bad
Replace (
Check / Replace
Intake heater does not
energize
Intake heater switch is bad
Timer is bad
Heater element is bad
Heater relay is bad
Table 4–6 Miscellaneous Engine Troubleshooting
Condition
Possible Cause
Remedy / Reference Section
Loss of power
Restriction in air cleaner
Air in fuel system
Air vent restricted
Clean
Restricted fuel lines
Engine Manual
Fuel injection pump is bad
Engine Manual
Injector(s) bad or incorrect type used
Engine Manual
Incorrect fuel injection pump timing
Engine Manual
Incorrect valve timing
Engine Manual
Poor compression
Engine Manual
Summary of Contents for 69UG15
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Page 60: ...T 375 6 2 Figure 6 2 Schematic for 12 VDC Control Circuit 12 VDC Control Circuit ...
Page 61: ...6 3 T 375 Figure 6 3 Schematic High Voltage Circuitry High Voltage Circuitry Receptacle Box ...
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