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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Mechanical - 4.3L) >> Diagnostic Information and Procedures >> Base Engine Misfire with Coolant Consumption

Base Engine Misfire with Coolant Consumption

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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 in Engine Controls.
  • Verify engine compression. Refer to Engine Compression Test .
  • Inspect the cylinder heads.
  • Inspect the engine block.
  • Repair or replace damaged components as required.
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