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Home >> GMC >> 1991 >> Forward Control 6.2 J, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 17 (Engine Controls - Specifications - 3.9L) >> Ignition System >> Ignition Timing

Ignition Timing

WARNING: This page is about a different car, the 1995 Dodge Ram Wagon, 1995 Dodge Ram Van, 1995 Dodge Pickup, 1995 Dodge Dakota, and 1995 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Always refer to Emission Control Label in engine compartment before attempting service. If manual and label differ, always use emission label specifications.
IGNITION TIMING

Application (1) Degrees BTDC
All Models (2)(3)
(1) At idle.
(2) See emission control information label in engine compartment.
(3) Ignition timing is controlled by PCM and is not adjustable.