47
ENGINE FAULT SHUTDOWN TROUBLESHOOTING
Symptom
Possible Cause
Solution
Low oil pressure shutdown
Low oil level
Check oil level, replace as neces-
sary
Faulty oil pressure sender
Replace oil pressure sender
Incorrect oil grade
Change engine oil, consult engine
operating manual
Worn oil pump
Consult engine operating manual
Oil leak
Consult engine operating manual
High Temperature shutdown
Low coolant level
Check coolant level, replace as
necessary
Faulty temperature sender
Replace temperature sender
Coolant leaks
Consult engine operating manual,
replace components as necessary
Worn water pump
Consult engine operating manual
Overcrank shutdown
Pump engine will not start
Consult engine operating manual
Overspeed shutdown
Pump cavitation
Reduce engine speed, lower intake
hose
Air trapped in intake hose
Relocate and/or straighten intake
hose
Intake insufficiently submerged
Lower intake hose
Air leak in intake hose
Inspect intake hoses and couplings
for damage or missing components
and seals
Air leak at pump housing
Inspect gaskets, seals and O-rings
at pump intake flange, cleanout
cover and priming port
No speed signal shutdown
Engine magnetic pickup damaged
or misaligned
Inspect magnetic pickup for dam-
age/alignment
Low fuel shutdown
Low fuel level
Refill fuel tank with clean diesel fuel
Low coolant shutdown
Low coolant level
Allow engine to cool. Check cool-
ant level in radiator. Add coolant
until it is 3/4” (19 mm) below the
filler neck