Bronco Full Size L6-300 4.9L (1987)
AFT-OF-AXLE TANKS
Fuel System Pressure Relief
CAUTION:
Fuel supply lines on EFI engines will remain pressurized for some period of time after the engine is shut off. This residual pressure must be relieved
before servicing of the fuel system is begun.
Relieve the residual pressure in the fuel system as follows:
^
Disconnect the inertia switch.
^
Crank the engine for 15 to 20 seconds to relieve pressure.
Replace Fuel Vapor Hose
1.
Drain the fuel from the tank.
2.
Raise the vehicle on a hoist and position the spare tire assembly out of the way.
3.
Position a suitable jack under the fuel tank and remove the 4 nuts and bolts that secure the fuel tank straps to the frame.
4.
Lower the fuel tank far enough to gain access to the vapor valve and carefully disconnect the hose from the valve.
Note:
The end of the hose can be slit/cut with a utility knife for ease of hose removal.
5.
Disconnect the vapor return line from the clips holding it to the rear crossmember and to the right frame rail.
6.
Disconnect the hose from the vapor return line.
7.
Obtain the new hose from the parts kit and cut it to match the length of the removed hose.
