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Installation Procedure 1

    Fig 1: View Of Second Mark On Base Of Distributor
    GM4376Courtesy of GENERAL MOTORS CORP.
  1. If installing a new distributor assembly, place 2 marks on the new distributor housing in the same location as the 2 marks on the original housing.
  2. Remove the new distributor cap, if necessary.
  3. Align the rotor with the second mark (2).
    4. Fig 2: View Of Distributor
    GM34397Courtesy of GENERAL MOTORS CORP.
  4. Guide the distributor into the engine.
  5. Align the hole in the distributor hold-down base over the mounting hole in the intake manifold.
    6. Fig 3: Marking Position Of Rotor In Relation To Distributor Housing
    GM4373Courtesy of GENERAL MOTORS CORP.
  6. As the distributor is being installed, observe the rotor moving in a clockwise direction about 42 degrees.
  7. Once the distributor is completely seated, the rotor segment should be aligned with the mark on the distributor base (1).
    • If the rotor segment is not aligned with the number 1 mark, the driven gear teeth and the camshaft have meshed one or more teeth out of alignment.
    • In order to correct this condition, remove the distributor and reinstall the distributor.
    8. Fig 4: View Of Distributor Hold Down Bolt
    GM366609Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  8. Install the distributor mounting clamp bolt.

    Tighten:  Tighten the distributor clamp bolt to 25 N.m (18 lb ft).

    9. Fig 5: View Of Distributor Cap
    GM301393Courtesy of GENERAL MOTORS CORP.
  9. Install the distributor cap.
  10. Install 2 new distributor cap screws.

    Tighten:  Tighten the screws to 2.4 N.m (21 lb in).

  11. Install the electrical connector to the distributor.
  12. Install the spark plug wires to the distributor cap.
    13. Fig 6: View Of Ignition Coil Wire Harness
    GM387772Courtesy of GENERAL MOTORS CORP.
  13. Install the ignition coil wire.

    Note the correct orientation of the wire boot.

    14. IMPORTANT: If the malfunction indicator lamp (MIL) is turned ON after installing the distributor, and a DTC P1345 is found, the distributor has been installed incorrectly.
  14. Refer to installation procedure 2 if malfunction indicator lamp is turned ON after installing the distributor.
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