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159
Mechanical Diagnosis
Condition
Possible Cause
Remedy
Engine will not crank
Electrical problem
Check and repair electrical system
Defective starter solenoid
Replace solenoid
Defective starter
Repair starter
Water in cylinders
Check for hydrostatic lock. Remove
injectors and turn engine slowly
Starter motor turns but engine
does not crank
Starter clutch defective
Replace
Engine cranks but fails to start
Fuel solenoid not energized
Check 8D and 8DP and CHF
circuits and fuel solenoid pull-in
relay. Check that controller is
configured for the correct engine.
Refer to appropriate Microprocessor
Diagnostic Manual.
Fuel solenoid defective or stuck
Replace fuel solenoid
Fuel injection pump defective
Replace injection pump
Air heater defective
Replace air heater
No fuel or wrong fuel
Fill with proper fuel
Electric fuel pump not energized
Check 8DF and CHFP circuits
Electric fuel pump defective
Replace electric fuel pump
Air in fuel system
Bleed air
Compression low
Overhaul engine
Injection nozzles defective
Replace nozzles
Compression low
Overhaul engine
Air cleaner clogged
Replace air filter
Exhaust plugged
Clean exhaust
Engine stops after starting
Air in fuel system
Bleed fuel system
Fuel filter obstructed
Replace filter element
Vent of fuel tank obstructed
Unclog vent
Clogged fuel tank or fuel lines
Clean fuel tank and fuel lines
High head pressure
Eliminate cause of high head
pressure