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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 948 (Engine Mechanical - 4.3L) >> Diagnostic Information and Procedures >> Base Engine Misfire with Coolant Consumption

Base Engine Misfire with Coolant Consumption

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Base Engine Misfire with Coolant Consumption

Cause Correction
Damaged or improperly installed cylinder head
Coolant consumption may or may not cause the engine to misfire.
  • Inspect the spark plugs. Refer to Spark Plug Inspection .
  • Verify engine compression. Refer to Engine Compression Test .
  • Inspect the cylinder heads.
  • Inspect the engine block.
  • Repair or replace damaged components as required.