Fuel Supply And Return Line Removal - Hummer H1 Service Manual

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Fuel Injection Line Removal
NOTE: Mark or tag fuel injection lines for installation refer-
ence.
1. Disconnect lines at injector nozzles (Figure 2-75).
2. Remove clamp and boot from lines at injection pump if
equipped.
3. Disconnect and remove injection lines.
INJECTION PUMP
Figure 2-75: Fuel Injection Line Removal
PLUG
FUEL RETURN
HOSE
05745159
INJECTION LINES
CLAMP
FUEL RETURN
HOSE CLAMP
VALVE COVER STUD
Figure 2-76: Fuel Supply and Return Line Routing

Fuel Supply and Return Line Removal

1. Loosen clamp and remove fuel supply hose from fuel
injection pump (Figure 2-76).
2. Loosen clamps and remove fuel return hose from injection
pump and return line (Figure 2-76).
3. Remove fuel return line clamps at right and left valve
covers.
4. Loosen clamps securing fuel return hoses to fuel injectors.
5. Remove fuel return jumper hoses and plugs at fuel
injectors.
FUEL INJECTION
PUMP
FUEL RETURN HOSE
Engine 2-53
FUEL
SUPPLY HOSE
FUEL
RETURN HOSE
FUEL
RETURN LINE