LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 1989 >> Forward Control 3.9 L, Standard >> Repair and Diagnosis >> Engine Performance >> Adjustment >> Tune-Up - V8 >> Adjustments >> Ignition System >> Distributor
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Ignition System: Distributor

Engines are equipped with a Delco-Remy HEI solid state distributor. No adjustments are necessary.

Fig 1: Firing Order & Distributor Rotation
G8359
scientia non olet · About LEMON Manuals