GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Caution: Gasoline or gasoline vapors are highly flammable. A fire could occur if an ignition source is present. Never drain or store gasoline or diesel fuel in an open container, due to the possibility of fire or explosion. Have a dry chemical (Class B) fire extinguisher nearby.

Caution: Always wear safety goggles when working with fuel in order to protect the eyes from fuel splash.

Caution: Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the connections. In order to reduce the risk of personal injury, cover the fuel system components with a shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an approved container when the disconnection is complete.

Notice: Cap the fittings and plug the holes when servicing the fuel system in order to prevent dirt and other contaminants from entering the open pipes and passages.

Important: Always replace the fill limiter vent valve O-ring when Installing the fuel limiter vent valve.

Important: Always maintain cleanliness when servicing fuel system components.


Object Number: 155562  Size: MH

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable.
  2. Relieve the fuel system fuel pressure. Refer to Fuel Pressure Relief .
  3. Remove the fuel tank. Refer to Fuel Tank Replacement .
  4. Remove the fill limiter vent valve snap ring.
  5. Remove the fill limiter vent valve.
  6. Remove the fill limiter vent valve O-ring.
  7. Clean the fill limiter vent valve O-ring sealing surfaces.
  8. Inspect the fill limiter vent valve O-ring sealing surfaces.
  9. Inspect the fill limiter vent valve for cracks or damage.
  10. If the fill limiter vent valve is cracked or damaged replace it.

Installation Procedure

Important: Be sure that the fill limiter vent valve retaining snap ring is fully seated within the tab slots on the fuel tank.


Object Number: 155562  Size: MH
  1. Position the new fill limiter vent valve O-ring on the fuel tank.
  2. Install the fill limiter vent valve.
  3. Install the fill limiter vent valve snap ring.
  4. Install the fuel tank. Refer to Fuel Tank Replacement .
  5. Refill with fuel and Install the fuel filler cap.
  6. Connect the negative battery cable.
  7. Inspect for fuel leaks using the following procedure:
  8. 7.1. Turn ON the ignition, for 2 seconds.
    7.2. Turn OFF the ignition, for 10 seconds.
    7.3. Turn ON the ignition.
    7.4. Inspect for fuel leaks.