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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 335 (Engine Controls - Self-Diagnostics - 3.0L) >> Diagnostic Tests >> DTC P0301-P0306: Specific Cylinder Misfire Detected >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

Excessive vibration from sources other than the engine could cause DTC P0300 to set. Vibration can be caused by thickness variation of the brake rotors, driveshaft not balanced, or worn/damaged accessory drive belt.

There may be more or less cylinders actually misfiring than indicated by the scan tool.