POWERTECH™ 2.9 L OEM Diesel Engines - John Deere Industrial ...

TroubleshootingSymptom Problem SolutionEngine emits black or gray Improper type of fuel. Use proper fuel.exhaust smokeClogged or dirty air cleaner.Engine overloaded.Injection nozzles dirty.Engine out of time.Turbocharger not functioning.Engine burning oilDefective muffler/exhaust piping(causing back-pressure)Service air cleaner.Reduce load.See your authorized servicing dealeror engine distributor.See your authorized servicing dealeror engine distributor.See your authorized servicing dealeror engine distributor.See LUBRICATION SYSTEMTROUBLESHOOTING, later in thissection.Replace muffler or defective piping.Engine Overheats Engine overloaded. Reduce load.Low coolant level.Faulty radiator cap.Loose or defective fan belts.Low engine oil level.Cooling system needs flushing.Defective thermostat.Defective temperature gauge orsender.Incorrect grade of fuel.Fill radiator to proper level, checkradiator and hoses for looseconnections or leaks.Have technician check.Adjust belt tension. Replace asrequired.Check oil level. Add oil as required.Flush cooling system.Remove and check thermostat.Check coolant temperature withthermometer and replace, ifnecessary.Use correct grade of fuel.Continued on next pageRG,RG34710,5092–19–30JAN98–6/850-9 060106PN=125