Thermo King SLXi Spectrum, Maintenance Manual

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Mechanical Diagnosis 13-5
Engine speed too high Misadjusted throttle solenoid Adjust throttle solenoid
Control rod sticks Repair injection pump
Engine fails to stop when unit is
Off Fuel solenoid valve defective Replace
Injection pump defective Replace pump
Engine knocks heavily Air in system Bleed fuel system
Injection pump not timed Retime injection pump
Wrong fuel Change fuel
Compression too low Overhaul engine
Injection nozzles fouled or opening
pressure too low Clean, repair or replace injection nozzles
Delivery valve spring broken Replace spring or repair injection pump
Valve out of adjustment Adjust valves
Fuel return line plugged Remove return line restriction
Rod or main bearing worn Replace rod or main bearings
Engine runs hot Dirty radiator Wash radiator
Coolant level is low Add coolant
Cooling system heavily scaled Clean cooling system
Cylinder head gasket leaks Replace cylinder head gasket
Use correct gasket
Faulty thermostat Check or replace thermostat
Loose or worn water pump belt Replace belt
Condenser shutters don’t open Adjust shutters or check power element
CONDITION POSSIBLE CAUSE REMEDY