S15/T15 Sonoma P/U 2WD L4-2.2L VIN 5 Flex Fuel (2001)
Fuel Pressure Release: Service and Repair
FUEL PRESSURE RELIEF PROCEDURE
TOOLS REQUIRED
J-34730-FF Fuel Pressure Gauge
CAUTION: Relieve the fuel system pressure before servicing fuel system components in order to reduce the risk of tire 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. Turn OFF the ignition.
CAUTION: Refer to Battery Disconnect Caution in Service Precautions.
2. Disconnect the negative battery cable in order to avoid possible fuel discharge if an accidental attempt is made to start the engine.
3. Loosen the fuel filler cap in order to relieve the fuel tank vapor pressure.
4. Connect the J-34730-FF to the fuel pressure connection. Wrap a shop towel around the fitting while connecting the gauge in order to avoid
spillage.
5. Install the bleed hose of the gauge into an approved container.
6. Open the valve on the gauge to bleed the system pressure.
7. Drain any fuel remaining in the fuel pressure gauge into an approved container.
