Inspection
| Action
|
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
in Engine Cooling.
|
Injector Tube Leakage
|
| • | Replace component as necessary. |
|
Isolate Affected Cylinders
|
| • | Cylinder balance test with scan tool |
| • | Cooling system pressurization |
| • | Inspection of glow plugs |
|
EGR System Inspection (If equipped)
|
| • | Inspect EGR valve and intake system for evidence of coolant leakage. |
| • | Replace the EGR cooler if any problem is found. |
|
Cylinder Head Gasket Leakage
|
| • | Remove cylinder heads of the affected cylinder bank and inspect for damage. |
| • | Replace components as necessary. |
|
Cylinder Head or Engine Block Damage
|
| • | Inspect the cylinder heads for cracks and warpage. |
| • | Inspect the cylinder block for damage. |
| • | Inspect the cylinder block to head mating surface for staightness. |
| • | Replace components as necessary. |
|
