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Home >> GMC >> 2002 >> Jimmy 2D Utility, Part Time, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 428 (Engine Controls - Basic Diagnostic Procedures) >> Idle Speed & Ignition Timing

Idle Speed & Ignition Timing

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

Idle speed is preset by manufacturer and is not adjustable. All models are equipped with an electronic computer-controlled ignition system. Timing is not adjustable.