GMC Workshop Service and Repair Manuals > V 3500 P/U 4WD L6-292 4.8L (1987) > Maintenance | Tune-up and Engine Performance Checks | Firing Order | Component Information | Specifications | Ignition Firing Order

Ignition Timing > < Engine, A/T - Shift/Driveability Concerns/MIL ON|Page 383

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FIRING ORDER 4.1L (250), 4.8L (292)

Maintenance
Tune-up and Engine Performance Checks
Firing Order
Component Information
Specifications
Ignition Firing Order

Ignition Timing > < Engine, A/T - Shift/Driveability Concerns/MIL ON|Page 383