Removal Procedure
- Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (LS7 or LS9) , Battery Negative Cable Disconnection and Connection (LS3) .
- Drain the fuel tank. Refer to Fuel Tank Draining .
- Remove the left rear wheelhouse panel. Refer to Rear Wheelhouse Panel Liner Replacement .
- Remove both mufflers. Refer to Exhaust Muffler Replacement - Left Side , and Exhaust Muffler Replacement - Right Side .
- If automatic transmission, remove the driveline support assembly. Refer to Driveline Support Assembly Replacement (With Manual Transmission) , or DRIVELINE SUPPORT ASSEMBLY REPLACEMENT (WITH AUTOMATIC TRANSMISSION) .
- Disconnect the fuel fill hose and recirc line from the fill pipe.
- Disconnect the fuel pump jumper harness connector.
- Disconnect the fuel feed pipe (4) at the rear of the left fuel tank. Refer to Plastic Collar Quick Connect Fitting Service .
- Cap the fuel pipes to prevent fuel system contamination.
- Loosen the fuel tank strap in order to drop the tank approximately 1 inch.
- Disengage the crossover tube connector position assurance (CPA) retainer by pulling the tab (1) outward and rotate.
- Rotate the collar counterclockwise to disengage.
- Disconnect the crossover tube (5) from the left fuel tank.
- Disconnect the evaporative emission (EVAP) crossover pipe (2) quick connect fitting at the left fuel tank.
- Cap the EVAP pipes (1 and 3) to prevent system contamination.
- Remove the fuel tank strap mount bolts.
- Remove the fuel tank strap from the vehicle.
- Remove the fuel tank.
- If the fuel pump sending unit is being removed and installed into the new tank, refer to Fuel Tank Fuel Pump Module Replacement - Left Side (6.2L LS3, 7.0L LS7) , Fuel Tank Fuel Pump Module Replacement - Left Side (6.2L LS9 - With Supercharger)
NOTE:
The crossover tube CPA is released when the latch disengages from the tank connection groove.
NOTE:
Take care not to disturb the internal O-rings in the fuel tank connections.