For 1990-2009 cars

Cause | Correction
--- | ---
Damaged or improperly installed cylinder head. Coolant consumption may or may not cause the engine to misfire. |

1. Inspect the spark plugs. Refer to Spark Plug Inspection .
2. Verify engine compression. Refer to Engine Compression Test .
3. Inspect the cylinder heads.
4. Inspect the engine block.
5. Repair or replace damaged components as required.