EngineCoolant in Combustion Chamber
Coolant in Combustion Chamber
Cause
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Correction
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DEFINITION: Excessive white smoke and/or coolant type odor coming
from the exhaust pipe may indicate coolant in the combustion
chamber. Low coolant levels, an inoperative cooling fan, or a
faulty thermostat may lead to an overtemperature condition which
may cause engine component damage.
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Remove the glow plugs and inspect for glow plugs
saturated by coolant or coolant in the cylinder bore. |
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Inspect by performing a cylinder leakage test.
Refer to
Cylinder Leakage Test . During this test, excessive air bubbles
within the coolant may indicate a faulty gasket or damaged
component. |
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Inspect by performing a cylinder compression test.
Two cylinders side-by-side on the engine block, with low
compression, may indicate a failed cylinder head gasket. Refer to
Engine Compression Test . |
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Faulty cylinder head gasket
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Replace the cylinder head gasket and components as required. Refer
to
Cylinder Head Replacement and
Cylinder Head Cleaning and Inspection .
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Warped cylinder head
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Replace the cylinder head and gasket. Refer to
Cylinder Head Replacement .
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Cracked cylinder head
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Replace the cylinder head and gasket. Refer to
Cylinder Head Replacement .
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Cracked cylinder liner
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Replace the components as required.
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Cylinder head or block porosity
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Replace the components as required.
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11 Engine
