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KRYOTEC ENGINE
18
EXCESSIVE WHITE SMOKE
POSSIBLE CAUSE
CORRECTION
Internal engine damage (scuffed cylinder).
Analyze engine oil and inspect oil filter to locate area of
probable damage.
Restriction in fuel supply side of fuel system.
(Refer to Non-DTC Diagnostics/Drivability - Diesel -
Diagnosis and Testing) for fuel system testing.
EXCESSIVE BLUE SMOKE
POSSIBLE CAUSE
CORRECTION
Dirty air cleaner or restricted turbocharger
intake duct.
Check Air Cleaner Housing for debris and replace filter
as necessary
Air leak in boost system between turbocharger
compressor outlet and intake manifold.
Service charge air system.
Obstruction in exhaust manifold.
Remove exhaust manifold and inspect for blockage.
Restricted turbocharger drain tube.
Remove turbocharger drain tube and remove
obstruction.
Crankcase ventilation system plugged.
Inspect oil separator system for function and clear drain
back hole in cylinder head cover/intake manifold
Valve seals are worn, brittle, or improperly
installed.
Replace valve stem Oil seals
Valve stems or guides are worn.
Remove valves and inspect valves and guides.
Broken or Improperly installed piston rings.
Tear down engine and Inspect piston rings.
Excessive piston ring end gap.
Remove pistons and measure piston ring end gap
Excessive cylinder liner wear and taper.
Remove pistons and measure cylinder liner wear and
taper.
Cylinder damage.
Remove pistons and inspect cylinder liner for cracks or
porosity. Repair with new cylinder liner if necessary.
Piston damage.
Remove pistons and inspect for cracks, holes. Measure
piston for out-of-round and taper.
Turbocharger failure.
Replace the turbocharger.