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Home >> Buick >> 2015 >> Verano Leather >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Engine Mechanical - 2.0L (LHU)) >> Diagnostic Information and Procedures >> Base Engine Misfire with Coolant Consumption (LDK, LHU)

Base Engine Misfire with Coolant Consumption (LDK, LHU)

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Cause Correction
Faulty cylinder head gasket and/or cracking, or other damage to the cylinder head and engine block cooling system passages.
Coolant consumption may or may not cause the engine to overheat.
  • Inspect for spark plugs saturated by coolant.
  • Perform a cylinder leak down test.
  • Inspect the cylinder head and engine block for damage to the coolant passages and/or a faulty head gasket.
  • Repair or replace as required.