GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Isuzu 🢒 2008 🢒 I-370 🢒 Engine 🢒 Engine Controls and Fuel - 3.7L 🢒 Plastic Collar Quick Connect Fitting Service

Removal Procedure

    Caution: Refer to Gasoline/Gasoline Vapors Caution in the Preface section.


    Object Number: 1210508 Size: SH

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

  1. Relieve the fuel system pressure before servicing any fuel system connection. Refer to the Fuel Pressure Relief .

    2. Caution: Refer to Safety Glasses and Compressed Air Caution in the Preface section.

    Notice: Refer to Fuel and Evaporative Emission Hose/Pipe Connection Cleaning Notice in the Preface section.


    Object Number: 155410 Size: SH
  2. Using compressed air, blow any dirt out of the quick-connect fitting.

    3. Object Number: 12777 Size: SH
  3. This step applies to Bartholomew style connectors ONLY. Squeeze the plastic quick-connect fitting release tabs.

    4. Object Number: 1205667 Size: SH
  4. This step applies to Q Release style connectors ONLY. Release the fitting by Pushing the tab toward the other side of the slot in the fitting.

    5. Object Number: 1205675 Size: SH
  5. This step applies to Squeeze to Release style connectors ONLY. Squeeze where indicated by arrows on both sides of the plastic ring surrounding the quick-connect fitting.

    6. Object Number: 1205683 Size: SH
  6. This step applies to Sliding Retainer style connectors ONLY. Release the fitting by pressing on one side of the release tab causing it to push in slightly. If the tab doesn't move try pressing the tab in from the opposite side. The tab will only move in one direction.

    7. Caution: Refer to Relieving Fuel Pressure Caution in the Preface section.


    Object Number: 12778 Size: SH
  7. Pull the connection apart.
  8. Using a clean shop towel, wipe off the male pipe end.
  9. Inspect both ends of the fitting for dirt and burrs.

    10. Clean or replace the components as required.

Installation Procedure

    Caution: Refer to Fuel Pipe Fitting Caution in the Preface section.


    Object Number: 155425 Size: SH
  1. Apply a few drops of clean engine oil to the male pipe end.

    2. Object Number: 21855 Size: SH
  2. Push both sides of the quick-connect fitting together in order to cause the retaining feature to snap into place.

    3. Object Number: 155399 Size: SH
  3. Pull on both sides of the quick-connect fitting to make sure the connection is secure.
  4. Inspect for leaks using the following procedure:
    5. 4.1. Turn the ignition ON, with the engine OFF for 2 seconds.
    4.2. Turn the ignition OFF, for 10 seconds.
    4.3. Turn the ignition ON, with the engine OFF for 2 seconds.
    4.4. Turn the ignition OFF.
    4.5. Inspect for leaks.