Fuel Pressure Relief. Cadillac Concours 1996

For 1990-2009 cars

#### Tools Required

J 34730-1A , Fuel Pressure Guage

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.

1. Loosen the fuel filler cap to relieve tank vapor pressure.
2. Turn the ignition Off.
3. Disconnect negative battery cable to avoid possible fuel discharge if an accidental attempt is made to start the engine. Refer to Battery.
4. Remove the intake manifold top cover.
5. Connect gauge J 34730-1A to fuel pressure connection. Wrap a shop towel around fitting while connecting gauge to avoid spillage.
6. Install the bleed hose into an approved container and open valve to bleed system pressure. Fuel connections are now safe for servicing.
7. Drain any fuel remaining in gauge into an approved container.