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Troubleshooting
OUOD006,000004C –19–13OCT06–2/7
Symptom Problem
Solution
Engine knocks Low engine oil level. Add oil to engine crankcase.
Injection pump out of time. See your authorized servicing dealer
or engine distributor.
Low coolant temperature. Remove and check thermostat.
Engine overheating. See “Engine Overheats”.
Engine runs irregularly or stalls Low coolant temperature. Remove and check thermostat.
frequently
Clogged fuel filter. Replace fuel filter element.
Water, dirt, or air in fuel system. Drain, flush, fill, and bleed system.
Poor quality fuel. Change to better quality fuel.
Dirty or faulty injection nozzles. Have authorized servicing dealer or
engine distributor check injectors.
Below normal engine Defective thermostat. Remove and check thermostat.
temperature
Defective temperature gauge or Check gauge, sender, and
sender. connections.
Continued on next page
50-8
110306
PN=127