Grand Prix V6-3100 3.1L MFI VIN M (1994)
Fuel Pressure Release: Service and Repair
FUEL SYSTEM PRESSURE RELIEF PROCEDURE
Engines With Fuel Pressure Connection (Must Be Performed Before Disconnecting Fuel Line Fittings)
CAUTION:
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To reduce the risk of fire and personal injury, it is necessary to relieve fuel system pressure before disconnecting fuel line fittings.
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After relieving system pressure, a small amount of fuel may be released when disconnecting fuel line fittings. In order to reduce the chance of
personal injury, cover fuel line fittings with a shop towel before disconnecting, to catch any fuel that may leak out. Place the towel in an approved
container when disconnect is completed.
Tool Required: J 34730-1 Fuel Pressure Gage
1. Ignition "OFF."
2. Disconnect negative battery cable to avoid possible fuel discharge if an accidental attempt is made to start the engine.
3. Loosen fuel filler cap to relieve tank vapor pressure.
4. Connect gage J 34730-1 to fuel pressure connection. Wrap a shop towel around fitting while connecting gage to avoid spillage.
5. Install bleed hose into an approved container and open valve to bleed system pressure. Fuel line fittings are now safe for servicing.
6. Drain any fuel remaining in gage into an approved gasoline container.
7
Perform service required.
8. Tighten fuel filler cap.
9. Ignition "OFF."
10. Connect negative battery cable.
11. Cycle ignition "ON" and "OFF" twice, waiting ten seconds between cycles, then check for fuel leaks.
