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Base Engine Misfire with Coolant Consumption

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
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.
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