Base Engine Misfire with Coolant Consumption

/ 9-5 (9650) / 2011 / 2. Engine / Basic engine, 4-cylinder diesel / Fault diagnosis, fault symptoms / Base Engine Misfire with Coolant Consumption

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.	1. Perform a cylinder leak down test. Refer to Cylinder Leakage Test . 2. Inspect the cylinder head and engine block for damage to the coolant passages and/or a faulty head gasket. 3. Repair or replace as required.
Faulty EGR System	Inspect EGR cooler using EN 48974 EGR cooler pressure tester adapter set 1 and replace the EGR cooler if any problem is found.

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