Thermo King KD-II SR, Manual

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Mechanical Diagnosis (Rev. 04/03)
146
Engine knocks Insufficient air Clean air filter
Air in fuel system Bleed fuel system
Engine is cold Warm up
Fuel return line plugged Remove restriction
Injection pump not timed Retime injection pump
Injection nozzle fouled or opening
pressure too low
Clean, repair or replace injection
nozzle
Dirty radiator Clean radiator
Worn engine parts Overhaul engine
Engine runs hot Engine coolant is low Add coolant slowly while engine is in
operation
Dirty or plugged radiator Clean radiator
Cooling system heavily scaled Clean cooling system
Water pump leaks Repair or replace water pump
Worn or loose belt Replace belt or adjust
Cylinder head gasket leaks (bubbles
appear in radiator if cylinder gasket
is leaking)
Replace cylinder head gasket.
Correct gasket
Faulty thermostat Check or replace the thermostat
Faulty temperature gauge Replace gauge
Oil pressure too low or drops
suddenly Insufficient oil in pan Refill oil base after correcting cause
of loss
Leak in oil line Tighten oil line fittings
Oil relief valve sticking Disassemble and clean oil pressure
regulator valve
Faulty oil pressure gauge Check oil line to oil pressure gauge
to see if it is blocked. Check oil
pressure gauge. Replace if
necessary
CONDITION POSSIBLE CAUSE REMEDY