Ford Transit 2002 Owner's Manual page 1355

3. Install the special tool to the fuel line.
4. NOTE: Both sides of the spring lock coupling
fuel line must be pushed together to enable
the special tool to release the spring lock
coupling locking tangs.
Slide the special tool into the spring lock coupling
to release the locking tangs.
5. Disconnect the fuel line from the spring lock
coupling.
Allow the fuel to drain into a suitable
container.
6. Remove the safety clips from the fuel line spring
lock couplings.
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