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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 5 (Engine Controls And Fuel - 4.3L (LV1) - Repair Instructions) >> Repair Instructions >> Plastic Collar Quick Connect Fitting Service >> Disconnect Procedure

Disconnect Procedure

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
  1. GM1555942Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    There are several types of Plastic Collar Fuel and Evaporative Emission Quick Connect Fittings used on this vehicle.

    • Bartholomew (1)
    • Q Release (2)
    • Squeeze to Release (3)
    • Sliding Retainer (4)
    • Push Down TI (5)
    • Ray Manufactured Connector (6)

    The following instructions apply to all of these types of Plastic Collar Quick Connect Fittings except where indicated.

    Relieve the fuel system pressure. Refer to Fuel Pressure Relief .

  2. GM155410Courtesy of GENERAL MOTORS COMPANY
    WARNING:

    Refer to Safety Glasses Warning .

    Using compressed air, blow any dirt or debris from around the connection.

  3. GM12777Courtesy of GENERAL MOTORS COMPANY

    This step applies to Bartholomew style connector ONLY. Squeeze the plastic quick connect fitting release tabs.

  4. GM1205667Courtesy of GENERAL MOTORS COMPANY

    This step applies to Release Tab style connector ONLY. Release the fitting by pushing the tab toward the other side of the slot in the fitting.

  5. GM1205675Courtesy of GENERAL MOTORS COMPANY

    This step applies to the Squeeze to Release style connector ONLY. Squeeze where indicated by the arrows shown above on both sides of the plastic ring surrounding the quick connect fitting.

  6. GM1205683Courtesy of GENERAL MOTORS COMPANY

    This step applies to the Sliding Retainer style connector ONLY. Release the fitting by pressing on one side of the release tab causing it to push in slightly. If the tab does not move try pressing the tab in from the opposite side. The tab will only move in one direction.

  7. GM1555944Courtesy of GENERAL MOTORS COMPANY

    This step applies to the Push Down TI style connector ONLY. Release the fitting by pressing on the tab indicated by the arrow.

  8. GM3530271Courtesy of GENERAL MOTORS COMPANY

    This step applies to the Ray Manufactured connector ONLY. Press the tabs on the connector's clip outward, and push up on the clip retaining clip.

  9. GM12778Courtesy of GENERAL MOTORS COMPANY
    WARNING:

    Refer to Relieving Fuel Pressure Warning .

    Pull the connection apart.