TROUBLESHOOTING AND ELECTRICAL SYSTEM: DIESEL VEHICLES
Troubleshooting Guide
2007 Carryall 295/295 SE & XRT 1550/1550 SE Gasoline, Diesel and IntelliTach M & S Manual
Page 11c-3
11C
Loss of engine power, continued.
Clutches are not backshifting properly
Clutches on page 13c-27
Low cylinder compression
See the Kubota D722 diesel engine
manual (CCI P/N 102615501).
Incorrect injection timing
Seized engine parts
Uneven fuel injection
Poor injection nozzle performance
Low oil warning light stays on.
Oil level is low
Add engine oil. See owner’s manual.
Oil level sensor failure
See the Kubota D722 diesel engine
manual (CCI P/N 102615501).
Low oil warning circuit malfunction
Test Procedure 27 – Low Oil Warning
Light Circuit on page 11c-44
High oil pressure.
Improper engine oil
See the Kubota D722 diesel engine
manual (CCI P/N 102615501).
Relief valve failed
Low oil pressure.
Oil level is low
Add engine oil. See owner’s manual.
Oil strainer clogged
See the Kubota D722 diesel engine
manual (CCI P/N 102615501).
Oil filter clogged
Relief valve clogged with dirt
Relief valve spring is weak or broken
Excessive clearance or crankshaft
bearing
Excessive clearance of rocker arm boss
Oil passage clogged
Oil pump failure
Improper engine oil
Drain engine oil and refill with specified
engine oil. See owner’s manual.
Engine overheats.
Oil level is low
Add engine oil. See owner’s manual.
Failed radiator fan or radiator fan circuit
Test Procedure 12 – Fan Motor on
page 11c-27
Thermostat switch failure
Test Procedure 11 – Thermostat Switch on
page 11c-25
Fan relay failure
Test Procedure 10 – Fan Relay on
page 11c-23
Low engine coolant level
Add coolant. See owner’s manual.
Radiator fins clogged with dust
Clean radiator fins.
Internal radiator corrosion
Clean or replace radiator. See
Section 15 – Radiator and Coolant
System (Diesel)
Coolant lines corroded
Clean or replace coolant lines. See
Section 15 – Radiator and Coolant
System (Diesel)
Failed radiator cap
Replace radiator cap.
Troubleshooting Guide continued on next page...
TROUBLESHOOTING GUIDE
SYMPTOM
POSSIBLE CAUSES
REFER TO
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