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Fuel System Pressure Release

WARNING: To reduce the risk of fire and personal injury, it is necessary to relieve the fuel system pressure before servicing fuel system components.
CAUTION: A small amount of fuel may be released when servicing fuel lines or connections. 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.

Disconnect negative battery terminal to avoid possible fuel discharge if an accidental attempt is made to start the engine. Loosen fuel filler cap to relieve tank vapor pressure. (Do not tighten until service has been completed). Connect gauge J 34730-1 to fuel pressure connection. Wrap a shop towel around fitting while connecting gauge to avoid spillage. Install bleed hose into an approved container and open valve to bleed system pressure. Fuel connections are now safe for servicing. Drain any fuel remaining in gauge into an approved container.

When repair to the fuel system has been completed, start engine and check all connections that were loosened for possible leaks.