Thermo King UT-1200, Manual

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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 correct Engine Type.
Refer to appropriate Microprocessor
Diagnostic Manual.
Fuel solenoid defective or stuck Replace
Fuel injection pump defective Replace pump
Glow plugs defective Replace
No fuel or wrong fuel Fill with proper fuel
Electric fuel pump not operating Check fuel pump is running and 8 to
10 psig (55 to 69 kPa). Repair or
replace fuel pump
Air in fuel system Bleed air
Compression low Overhaul engine
Injection nozzles defective Replace nozzles
Incorrect timing Adjust timing
Air cleaner clogged Replace air filter
Exhaust plugged Clean exhaust
Engine stops after starting Air in injection pump Bleed fuel system
Fuel filter obstructed Replace filter element
High head pressure Eliminate cause of high head
pressure
High engine coolant temperature Add coolant. Check for leaks
Low oil pressure Add oil. Check for leaks
Vent of fuel tank obstructed Remove obstruction
Clogged fuel tank or fuel lines Clean fuel tank and fuel lines
Electric fuel pump not operating
correctly Check fuel pump is running and 8 to
10 psig (55 to 69 kPa). Repair or
replace fuel pump
Dry air cleaner plugged Change filter element