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OM3-80 12/21
Troubleshooting (Continued)
Continued on next page
OUOD006,0000113 -19-16OCT07-4/5
Symptom
Problem
Solution
Fuel injectors dirty.
Use John Deere approved biodiesel
or diesel fuel conditioners containing
detergents. If no improvement is
seen, see your authorized servicing
dealer or engine distributor.
Engine out of time.
See your authorized servicing dealer
or engine distributor.
Turbocharger not functioning.
See your authorized servicing dealer
or engine distributor.
Electronic fuel system problem
See your authorized servicing dealer
Engine overheats
Engine overloaded.
Reduce load.
Low coolant level.
Fill coolant tank to proper level, check
coolant tank and hoses for loose
connections or leaks.
Faulty coolant tank cap.
Have serviceman check.
Stretched poly-vee belt or defective
belt tensioner.
Check automatic belt tensioner and
check belts for stretching. Replace as
required.
Faulty sea (raw) water pump.
Check/replace impeller/pump.
Low engine oil level.
Check oil level. Add oil as required.
Flush cooling system.
Defective thermostat.
Remove and check thermostat.
Defective temperature gauge or
sender.
Check water temperature with
thermometer and replace, if
necessary.
Electronic fuel system problem
See your authorized servicing dealer
Incorrect grade of fuel.
Use correct grade of fuel.
Plugged heat exchanger.
Clean heat exchanger and core.
Plugged keel cooler.
Flush and clean keel cooler. Check for
marine growth on O.D. of keel cooler
tubes.
Trash or debris in engine
compartment.
Clean engine compartment.
High fuel consumption
Improper type of fuel.
Use proper type of fuel.
Clogged or dirty air cleaner.
Service air cleaner.
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