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Home >> Lincoln >> 2005 >> Aviator AWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine System-General Information >> Diagnosis And Testing >> Engine >> Excessive Engine Oil Consumption >> Detailed Pre-Checks

Detailed Pre-Checks

  1. Check the thermostat opening temperature to make sure that the cooling system is operating at the specified temperature. If it is low, internal engine parts are not running at specified internal operating clearances.
  2. Verify the spark plugs are not oil saturated. Oil leaking into one or more cylinders will appear as an oil soaked condition on the plug. If a plug is saturated, a compression check may be necessary at the conclusion of the oil consumption test.
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