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cylinder head gasket. 7. Perform the leakage test on the remaining cylinders and record the values. OIL CONSUMPTION DIAGNOSIS Oil Consumption Diagnosis Checks Causes Excessive oil consumption (not due to leaks) is the use of 0.95 L (1.0 qts) or more of engine The causes of excessive oil consumption may include the External oil leaks Refer to Oil Leak Diagnosis. Incorrect oil level or improper reading of the oil level With the vehicle on a level surface, run the engine for a Improper oil viscosity Refer to the vehicle owners manual and use the Continuous high speed driving and/or severe usage Crankcase ventilation system restrictions or Worn valve guides and/or valve stems Worn or improperly installed valve stem oil seals Piston rings broken, worn, not seated properly Allow adequate time for the rings to seat. Replace worn piston rings as necessary.
2006 Hummer H3 2006 ENGINE Engine Mechanical - 3.5L (L52) - H3
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