Fuel Pressure Relief Procedure
Tools Required: J 34730-1A Fuel Pressure Gage. See Special Tools .
CAUTION:
Relieve the fuel system pressure before servicing fuel system components in order to reduce the risk of fire and personal injury.
After relieving the system pressure, a small amount of fuel may be released when servicing the fuel lines or connections. In order to reduce the chance of personal injury, cover the regulator and the fuel line fittings with a shop towel before disconnecting. This will catch any fuel that may leak out. Place the towel in an approved container when the disconnection is complete.
After relieving the system pressure, a small amount of fuel may be released when servicing the fuel lines or connections. In order to reduce the chance of personal injury, cover the regulator and the fuel line fittings with a shop towel before disconnecting. This will catch any fuel that may leak out. Place the towel in an approved container when the disconnection is complete.
- Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (RPOs L26/L32) or Battery Negative Cable Disconnect/Connect Procedure (RPO LS4) .
- Install the J 34730-1A . See Special Tools . Refer to Fuel Pressure Gage Installation and Removal .
- Loosen the fuel fill cap in order to relieve the fuel tank vapor pressure.
- Install the drain hose from J 34730-1A into an approved container. See Special Tools .
- Open the valve on the J 34730-1A in order to bleed the system pressure. See Special Tools .
- Drain any fuel remaining in the gage into the approved container.
- Once the system pressure is completely relieved, remove the J 34730-1A . See Special Tools .
- The fuel connections are now safe for servicing.