Tune-Up - V8: Adjustments: Distributor

All models are equipped with High Energy Ignition (HEI) systems with Electronic Spark Timing (EST). No adjustments are required.

Fig 1: 4.1L Firing Order & Timing Marks

Fig 2: 5.0L (VIN Q, Y & 9) Firing Order & Timing Marks

Fig 3: 5.0L (All Others) & 5.7L Firing Order & Timing Marks