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Home >> Cadillac >> 2010 >> Escalade EXT >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System & Fuel System - 5.3L, 6.0L, 6.2L - Repair Instructions >> Repair Instructions >> Plastic Collar Quick Connect Fitting Service >> Disconnect Procedure
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Disconnect Procedure

WARNING: Refer to Gasoline/Gasoline Vapors Warning .
    Fig 1: Identifying Plastic Collar Fuel & Evaporative Emission Quick Connect Fittings
    GM1555942Courtesy of GENERAL MOTORS CORP.
    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)

    The following instructions apply to all of these types of plastic collar quick connect fittings except where indicated.
  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief (CH-48027)  or Fuel Pressure Relief (Without CH-48027) .
    2. Fig 2: Blowing Dirt Out Of Fitting (Plastic Collar)
    GM155410Courtesy of GENERAL MOTORS CORP.
    WARNING: Refer to Safety Glasses Warning .
    CAUTION: Refer to Fuel and Evaporative Emission Hose/Pipe Connection Cleaning Caution .
  2. Using compressed air, blow any dirt or debris from around the connection.
    3. Fig 3: View Of Quick Connect Fitting Release Tabs (Plastic Collar)
    GM12777Courtesy of GENERAL MOTORS CORP.
  3. This step applies to Bartholomew style connector ONLY. Squeeze the plastic quick connect fitting release tabs.
    4. Fig 4: Releasing Q Release Style Connectors (Plastic Collar)
    GM1205667Courtesy of GENERAL MOTORS CORP.
  4. 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. Fig 5: Disengaging Quick Connect Fitting (Plastic Collar)
    GM1205675Courtesy of GENERAL MOTORS CORP.
  5. 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. Fig 6: View Of Sliding Retainer Style Connector
    GM1205683Courtesy of GENERAL MOTORS CORP.
  6. 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. Fig 7: View Of Push Down TI Style Connector
    GM1555944Courtesy of GENERAL MOTORS CORP.
  7. This step applies to the Push Down TI style connector ONLY. Release the fitting by pressing on the tab indicated by the arrow.
    8. Fig 8: Pulling Connection Apart (Plastic Collar)
    GM12778Courtesy of GENERAL MOTORS CORP.
    WARNING: Refer to Relieving Fuel Pressure Warning .
  8. Pull the connection apart.
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