Do I need to remove the gas tank in order to replace the skid plate under the gas tank? Or when I remove the skid plate will the gas tank become lose?

USA car LHD left hand drive and 4.7L gas engine not the DIESEL right?
well there is only one way
easy for some and not for other
and not get a bath in fuel.
the service manual covers this.
I have books and the car WJ, grand. but is near same as commander.
OEM chapter 14
tank. gas (petrol ,and not diesel wG jeeps)
page 14-21 quoted
Two different procedures may be used to drain fuel tank: through the fuel fill fitting on tank, or using a diagnostic scan tool. (YOU DO NOT HAVE TOOL)
The quickest draining procedure involves removing the rubber fuel fill hose (3) from fuel tank fitting (7).



1. Release fuel system pressure.(PRESSURE IZED LINES GOING FRONT)
2. Raise vehicle.
3. Thoroughly clean area around fuel fill fitting (7) and rubber fuel fill hose (3) at rear of fuel tank (8).
4. Loosen clamp (9) at tank fitting (7) and disconnect rubber fuel fill hose at fuel tank fitting. Using an approved gas
holding tank, drain fuel tank through this fitting.
Loosen clamp (9) and disconnect rubber fill hose (3) at tank fitting (7).
2. At rear of tank, disconnect fuel pump module electrical jumper connector (5) from body connector (6).
3. At rear of tank, disconnect EVAP lines (2) and (3) from lines (1) and (4).
4. At front of tank, disconnect fuel and EVAP lines (9) and (10) from lines (11) and (12).
5. Support tank with a hydraulic jack.
6. Remove bolts (1) and (2) at right side of fuel tank.
7. Remove bolts (3) at left side of fuel tank.
8. Lower tank for removal.
9. If fuel tank is to be replaced, remove fuel pump module from tank. Refer to Fuel Pump Module Removal/Instal-
lation procedures

No. the fuel tank is cradled by the skid plate.

Overtime, Jeep Grand Cherokee fuel tanks develop rust and accumulate sediment. This is especially true if the tank sits empty for a period of time. Rust and sediment can break loose and cause clogged filters. When the filter is clogged, the engine does not receive the amount of fuel required to operate. The fuel tank can be cleaned out; however, replacing the tank is easier.

1 Apply the parking brake.

2 Remove the gas cap.

3 Remove the fuel pump relay from the power distribution center under the hood. Look at the underside of the power distribution cover, and locate the fuel pump relay.

4 Attempt to start the engine, cranking the engine for several seconds.

5 Turn the ignition to "Off." Install the fuel pump relay.

6 Disconnect the negative cable from the battery.

7 Lift the fuel tank into position, using the jack.

8 Attach the fuel filler hose and vapor return hose to the fuel tank.Tighten the clamps with a Phillips screwdriver.

9 Pivot the fuel tank retaining straps into position. Tighten the fuel tank retaining strap nuts with a socket and ratchet. Lower the jack.

10 Connect the fuel pump electrical connector, the fuel filter line and the fuel return line. Push the fuel line retainer into the chassis.

11 Raise the heat shield. Install the mounting bolts. Tighten the mounting bolts with a socket and ratchet.

12 Install the tow hooks or trailer hitch, if equipped.

13 Lift the skid plate into position with the jack. Tighten the skid plate mounting bolts with a socket and ratchet.

14 Attach the electrical service connector to the bumper with a socket and ratchet.

15 Raise the jack and remove the jack stands. Slowly, lower the vehicle.

16 Pour the fuel into the gas tank. Connect the negative battery cable.

Buy Custom car Parts.

Fig. Fuel pump flange bolt torque sequence-2002 Explorer and Mountaineer and Sport-Trac Sport Built Before 03/2002

1. Before servicing the vehicle, please familiarize yourself with safety procedures.
   
2. Disconnect the battery ground cable.
   
3. Relieve the fuel system pressure.
   
4. Drain the fuel tank.
   
5. 4WD vehicle
   1. Remove the fuel tank skid plate bolts.
      
   2. Remove the fuel tank skid plate rear left bolt.
      
   3. Remove the fuel tank skid plate rear right bolt and lower the fuel tank skid plate.
6. All vehicles
   1. Use a suitable jack to support the fuel tank.
      
   2. Remove the vent hose.
      
   3. Remove the bolt and reposition the fuel tank support strap.
      
   4. Remove the support bolts and push the fuel tank back until the lip clears the support bracket.
      
   5. Lower the fuel tank just enough to expose the fuel lines and the fuel tank transducer connector.
      
   6. Disconnect the fuel line and the vapor line.
      
   7. Disconnect the fuel tank electrical supply connector near the frame rail. Lower the fuel tank.
      
7. Clean the area around the fuel pump assembly mounting flange.
   
8. Disconnect the electrical connector from the fuel pressure transducer.
   WARNING The fuel pump assembly must be handled carefully to avoid damage to the float arm and the filter.
   
9. Remove the fuel pump mounting bolts and remove the fuel pump assembly.

Hope helps.

Anyone special tool, just check this procedure to Removal & Installation
CAUTION Fuel injection systems remain under pressure, even after the engine has been turned OFF. The fuel system pressure must be relieved before disconnecting any fuel lines. Failure to do so may result in fire and/or personal injury.

1. Before servicing the vehicle, refer to the Precautions Section.
2. Remove or disconnect the following:
   Negative battery cable Fuel pressure Fuel tank skid plate bolts and lower the skid plate. Fuel Fuel tank filler pipe hose from the tank Fuel tank filler pipe vent hose from the tank Fuel lines from the fuel pump Front fuel tank connections Rear Evaporative Emissions (EVAP) hose clamp and the hose Electrical connector from the fuel pump


3. Support the fuel tank with a jack.
   Fuel tank support strap bolts and the fuel tank straps Fuel tank

To install:

1. Installation is the reverse of removal. Note the following torques:
   1. Tighten the fuel tank strap bolts to:
      F-150: 35 ft. lbs. (47 Nm) F-250 and F-350 mid-ships tank: 30 ft. lbs. (40 Nm) F-250 and F-350 aft-of-axle tank: 66 ft. lbs. (90 Nm) Mark LT: 35 ft. lbs. (47 Nm)
2. Tighten the skid plate bolts to:
   F-150: 15 ft. lbs. (20 Nm) F-250 and F-350 mid-ships tank shield: 15 ft. lbs. (20 Nm) F-250 and F-350 aft-of-axle tank cover: 66 ft. lbs. (90 Nm) Mark LT: 15 ft. lbs. (20 Nm)
3. Connect the negative battery cable.

Hope helps.

2 door or 4 door. Either way you're going to have to drop the tank. The 4 door is a little easier and can be done with it flat on the ground. The 2 door had a rear tank and the bolts have a tendency to become a little more rusted. Remove the skid plate under the tank if it's still there. Follow the wires to the frame rail and unplug the plug. Unhook the fuel lines, and drop the tank (helps if it's low on fuel). Spin the ring that holds the sending unit in place and remove it.

Disconnect the battery, Jack the rear up on stable jack stands. use a smaller jack with a piece of wood to stable the load under the tank. You will see 2 band straps under the tank, remove the bolts, only 1 side have bolts, the other side swings down. The hose from the gas cap will have to be disconnected, which can be !!!!! when in-stalling. you can then drop the gas tank down easily with the jack just a bit, enough to reach around to unplug the fuel pump plug, and the gas lines. Once it's removed, the pump has a big screw on ring, take it off and the fuel pump can be pulled out.

remove the lower skid plate under the radiator, it should have a drain in one of the tanks...

No, like others said, there's an access plate under the rear seats. Most imports (Honda, Toyota, Nissan) have this access plate to get to the pump. Some domestics don't (90's Camaros etc)

Usually if the gas gage does not work yes it is true it may be the sensor if it is electronicly controlled. the sncor will more than likley be in the tank. here is how to remove your gas tank.

1. Before servicing the vehicle, refer to the precautions section.
   
2. Relieve fuel system pressure.
   
3. Drain the fuel tank.
   
4. Remove or disconnect the following:
   
   • Negative battery cable
     
   • Fuel filler and vent hoses
     
   • Fuel tank skid plate
     
   • Fuel tank wiring connectors
     
   • Fuel supply and return lines
     
   • Fuel tank
     
   • Fuel pump assembly
     Fuel pump assembly mounting
     

To install:

1. Install or connect the following:
   
   • Fuel pump assembly
     
   • Fuel tank. Tighten the bolts to 27 ft. lbs. (36 Nm).
     
   • Fuel supply and return lines
     
   • Fuel tank wiring connectors
     
   • Fuel tank skid plate
     
   • Fuel filler and vent hoses
     
   • Negative battery cable
     
2. Start the engine and check for leaks.