Base Engine Misfire with Coolant Consumption. Buick Rainier

For 1990-2009 cars only

Makes 🢒 Buick 🢒 2006 🢒 Rainier - 2WD 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 Base Engine Misfire with Coolant Consumption

Cause

Correction

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.

•	Inspect for spark plugs saturated by coolant. Refer to Spark Plug Inspection .

•	Perform a cylinder leak down test. Refer to Cylinder Leakage Test .

•	Inspect the cylinder heads and engine block for damage to the coolant passages and/or a faulty head gasket. Refer to Coolant in Combustion Chamber .

•	Repair or replace, as required.