Removal (LS)
NOTE:
LS uses a saddle-type fuel tank consisting of 2 fuel sending units and 2 fuel pump modules. A Jet Pump Module (JPM) in left half of fuel tank supplies fuel to right half, which contains Fuel Delivery Module (FDM). FDM supplies fuel under pressure to fuel injection supply manifold.
NOTE:
Both sides of fuel tank must be drained individually to ensure all possible fuel is removed.
Release fuel pressure. See FUEL SYSTEM PRESSURE RELEASE . Disconnect negative battery cable. Release 2 latches at front of rear seat cushion and remove rear seat cushion and any insulation padding covering both fuel pump module access covers. Remove FDM and JPM access covers. Drain fuel from fuel tank. Use following procedures for appropriate fuel pump module removal:
- Fuel Delivery Module (FDM)
To remove FDM (right saddle tank fuel pump module), press release tabs on fuel lines at FDM. Turn fuel lines slightly and pull straight up to remove fuel line connector. Disconnect electrical connector to FDM. Using Fuel Sender Wrench (310-069), remove FDM retainer ring. Position FDM flange clear of fuel tank opening. Press lock tabs and release FDM from tank mounting flange. Remove FDM from fuel tank.
- Jet Pump Module (JPM)
To remove JPM (left saddle tank fuel module), raise and support vehicle. Remove bolts and nuts retaining exhaust heatshield to exhaust system. Loosen, but DO NOT remove left and right fuel tank support strap bolts. Lower straps and fuel tank approximately 1". Lower vehicle. - Press release tabs on fuel lines at JPM. Turn fuel lines slightly and pull straight up to remove fuel line connector. Disconnect electrical connector to JPM. Using Fuel Sender Wrench (310-069), remove JPM retainer ring. Position JPM flange clear of fuel tank opening. Press lock tabs and release JPM from tank mounting flange. Remove JPM from fuel tank.