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Home >> Chevrolet >> 2004 >> Astro Van Cargo, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 4.3L - Introduction >> Repair Instructions >> Distributor Replacement >> Installation Procedure 1
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Installation Procedure 1

  1. If installing a new distributor assembly, place 2 marks on the new distributor housing in the same location as the marks on the original housing.
  2. Remove the new distributor cap, if necessary.
  3. Align the rotor with the second mark (2).
    Fig 1: Placing Mark On Distributor Base
    GM4376Courtesy of GENERAL MOTORS CORP.
  4. Guide the distributor into the engine.
    Fig 2: View Of Distributor
    GM34397Courtesy of GENERAL MOTORS CORP.
  5. Align the hole in the distributor hold-down base over the mounting hole in the intake manifold.
  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).
    Fig 3: Marking Rotor To Distributor Housing Alignment
    GM4373Courtesy of GENERAL MOTORS CORP.
    • If the rotor segment is not aligned with the mark, the driven gear teeth and the camshaft have meshed one or more teeth out of alignment.
    • In order to correct this condition, remove and reinstall the distributor.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  8. Install the distributor mounting clamp bolt.

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

    Fig 4: View Of Distributor Mounting Clamp Bolt
    GM366609Courtesy of GENERAL MOTORS CORP.
  9. Install the distributor cap.
  10. Install the new distributor cap screws.

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

    Fig 5: View Of Distributor Cap
    GM301393Courtesy of GENERAL MOTORS CORP.
  11. Install the electrical connector to the distributor.
  12. Install the spark plug wires to the distributor cap.
  13. Install the ignition coil wire. Note the correct orientation of the wire boot.
    Fig 6: View Of Ignition Coil Wire Harness
    GM387772Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: If the malfunction indicator lamp illuminates after installing the distributor and DTC P1345 is set, the distributor has been installed incorrectly.
  14. Refer to Installation Procedure 2 if the malfunction indicator lamp illuminates after installing the distributor.
  15. Install the engine cover. Refer to Engine Cover Replacement in Interior Trim.
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