Chrysler Repair: fuel pump on 99 LHS, drb scan tool, fuel pump filter


Question
I would like to know do you have to drop the gas tank to replace the fuel pump/filter. Someone mentioned that it might be under the backseat, and if so, how do you remove the back seat

Thank you very much

Answer
FUEL TANK
REMOVAL
Release fuel pressure, Refer to Fuel System Pressure Release Procedure.
Remove rear seat.
Disconnect fuel pump electrical connector Electrical Connector
Disconnect battery cable Battery Cable
Raise vehicle and support.
Drain fuel tank, refer to Draining Fuel Tank Fuel Tank Drain
Loosen the rear stabilizer bar brackets from body. Swing stabilizer bar toward rear of vehicle Stabilizer Bar and Stabilizer Bar and EVAP Canister
Loosen and remove fuel filler tube from fuel tank Fuel Filler Tube
Disconnect fuel and EVAP lines Fuel and EVAP Lines
Position transmission jack under fuel tank assembly.
Remove fuel tank straps bolts. Passenger side first.
Lower fuel tank and remove the purge line and vent line.
INSTALLATION
Raise the fuel tank on the transmission stand.
Install fuel pump electrical connector into hole in the body.
Connect the purge and vent lines.
Raise tank into position and install tank straps.
Install the fuel filler tube and tighten the clamp.
Reposition the stabilizer bar and install bolts.
Lower vehicle.
Connect the fuel pump electrical connector that is in the rear seat.
Install the rear seat.
Connect the battery cable.
Fill fuel tank. Use the DRB scan tool to pressurize the fuel system. Check for leaks.

FUEL PUMP MODULE
REMOVAL
Release fuel pressure, Refer to Fuel System Pressure Release Procedure in the Fuel Delivery section.
Remove Fuel Tank refer to the Fuel Tank Removal/Installation in this group
WARNING: THE FUEL RESERVOIR OF THE FUEL PUMP MODULE DOES NOT EMPTY OUT WHEN THE TANK IS DRAINED. THE FUEL IN THE RESERVOIR WILL SPILL OUT WHEN THE MODULE IS REMOVED.

Disconnect fuel line from fuel pump module by depressing quick connect retainers with thumb and fore finger.
Slide fuel pump module electrical connector lock to unlock.
Disconnect the electrical connection from the fuel pump module, by pushing down on connector retainer and pulling connector off of module.
Use Special Tool #6856 to remove fuel pump module locknut Fuel Tank Locknut
Remove fuel pump and O-ring seal from tank. Discard old seal
INSTALLATION
Wipe seal area of tank clean and place a new seal in position in the tank opening.
Position fuel pump in the tank. Make sure the alignment tabs on the underside of the fuel pump module flange sits in the notches on the fuel tank Fuel Tank Locator Notch
Position the locknut over the fuel pump module.
Tighten the locknut using Special Tool #6856 to 55 N·m (40.5 ft. lbs.)
CAUTION: Over tightening the pump lock ring may result in a leak.

Raise the fuel tank on the transmission stand.
Install fuel pump electrical connector into hole in the body.
Connect the purge and vent lines.
Raise tank into position and install tank straps.
Install the fuel filler tube and tighten the clamp.
Reposition the stabilizer bar and install bolts.
Lower vehicle.
Connect the fuel pump electrical connector that is in the rear seat.
Install the rear seat.
Connect the battery cable.
Fill fuel tank. Use the DRB scan tool to pressurize the fuel system. Check for leaks