Thermo King SLXi Spectrum, Maintenance Manual

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Mechanical Diagnosis 13-7
White Smoke (fuel is not burning) Cold engine Allow engine to warm up
Low compression Check and eliminate possible causes.
Repair as necessary
Timing incorrect Readjust timing
Air or water in fuel Bleed system. Replace filters, clean fuel system, drain
and clean tank and check supply tank for water. Use
known good fuel
Insufficient preheat Check glow plugs (or air heater)
Injection pump defective Replace or repair pump
Blue Smoke (oil consumption) Excessive oil consumption Refer to High Oil Consumption. Repair as necessary
Engine is sooting heavily, emits
thick black clouds of smoke
(excessive fuel to air ratio) Cold engine Allow engine to warm up
Wrong fuel Drain and refill with correct fuel
Clogged air intake system Clean or replace air cleaner
Restricted exhaust system Clean or replace
Opening pressure of nozzle is too
low or needle sticks Repair nozzle. Replace if necessary
Injection amount too great Have pump repaired
Oil being drawn in Check oil level in oil bath air filter
Injection pump not timed Check timing of injection pump
Excessive load Check drive system and engine oil pressure
Poor compression Check and eliminate possible causes.
Repair as necessary
CONDITION POSSIBLE CAUSE REMEDY