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Home >> GMC >> 1997 >> Forward Control 7.4 J >> Repair and Diagnosis >> External Pages >> Different car >> Section 5 (Engine Controls - Specifications - 3.1L) >> Ignition System >> Ignition Timing
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Ignition Timing

WARNING: This page is about a different car, the 1995 Pontiac Trans Sport and 1995 Chevrolet Lumina APV. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: For timing adjustment procedures, see ADJUSTMENTS - 3.1L article in the ENGINE PERFORMANCE section.
IGNITION TIMING

Application (1) Man. Trans. (2) Auto. Trans.
3.1L (VIN D) 10 @ Idle 10 @ Idle
(1) With transmission in Neutral.
(2) With transmission in Neutral or Park.