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Base Engine Misfire with Coolant Consumption

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.