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.

Preliminary Inspection

Verify that there are no external coolant leaks. Refer to Loss of Coolant .

Isolate Affected Cylinders

Important: If coolant is found in any of the right bank cylinders, inspect for a leaking EGR cooler using EN-48974 -1. Coolant may enter the right bank cylinders through the exhaust system after shutdown.

EGR System Inspection

1. Inspect EGR cooler using EN-48974 -1.
2. Replace the EGR cooler if any problem is found.

Cylinder Head Gasket Leakage

Cylinder Head or Engine Block Damage

1. Inspect the cylinder heads for cracks and warpage.
2. Inspect the cylinder block for damage.
3. Inspect the cylinder block to head mating surface for straightness.
4. Replace components as necessary.