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Home >> GMC >> 2001 >> Jimmy 2D Utility, 4WD, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Diagnostic Procedures >> Idle Speed & Ignition Timing (Gasoline)

Idle Speed & Ignition Timing (Gasoline)

Ensure idle speed and ignition timing are set to specifications. For specifications and adjustment procedures, see appropriate ON-VEHICLE ADJUSTMENTS article.