Base Engine Misfire with Coolant Consumption. Pontiac G8 2008

For 1990-2009 cars only

Makes 🢒 Pontiac 🢒 2008 🢒 G8 🢒 Engine 🢒 Engine Mechanical - 2.8L, 3.0L, 3.2L, or 3.6L 🢒 Base Engine Misfire with Coolant Consumption

Cause

Correction

Faulty cylinder head gaskets and/or cracking or other damage to the cylinder heads and cylinder block cooling system passages. Refer to Diagnostic Starting Point - Engine Cooling.

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 cylinder block for damage to the coolant passages and/or a faulty head gasket.

•	Repair or replace as required.