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