Thursday, May 8, 2014
How to Replace 2000 Jeep Wrangler Fuel Pump
The Jeep Wrangler is a compact sport utility vehicle with four-wheel drive produced by Chrysler since 1987. The engine in all versions of the 2000 Jeep Wrangler is a 6-cylinder 4.0-liter which uses multi-port fuel injection. This type of fuel injection requires an electric fuel pump that delivers fuel to the engine under high pressure. The fuel pump in a 2000 Jeep Wrangler is located in the fuel tank, which you must remove in order to replace the fuel pump.
Instructions
- 1
Remove the fuel pump relay from the power distribution center. Start the engine, and allow it to run until it stalls. Crank the engine to ensure that it will not start, and turn the ignition switch to the off position. Disconnect the cable to the batterys negative terminal with a socket wrench to prevent accidental sparking while you work on the vehicle.
2Drain the fuel tank by siphoning the fuel through the filler cap opening into a container approved for gasoline. Disconnect the fuel filler from the body of the vehicle with a socket wrench. Remove the right rear tire and its wheelhouse liner to gain access to the two vapor lines for the fuel tank, and disconnect the vapor lines. Detach the electrical connector and fuel supply line for the fuel tank.
3Support the fuel tank with a transmission jack, and remove the bolts that hold the fuel tank to the skid plate. Lower the fuel tank slightly, so you can disconnect the fuel filler hose from the fuel tank. Remove the nuts for the fuel tank straps, and separate the fuel tank from the skid plate. Remove the fuel tank from the vehicle.
4Place special tool 9340 into the notches on the outside edge of the lock ring of the fuel pump. Attach a 1/2-inch breaker bar to the special tool, and rotate the breaker bar counterclockwise. Remove the lock ring from the fuel pump module, and detach the fuel pump module from the fuel tank. Discard the gasket on the fuel tank.
5Install a new gasket on the fuel tank, and install the new fuel pump into the fuel tank. Place the locking ring on the fuel pump module, and align the arrow on the locking ring with the center alignment mark on the fuel pump module. Turn the locking ring clockwise with special tool 9340 until the notches on the locking ring engage. Install the fuel tank by reversing steps 3 and 2. Tighten the nuts for the fuel tank strap so there is 30 mm of clearance between the bottom of the nuts and the end of the strap studs. Tighten the nuts for the skid plate to 141 inch-lbs. with a torque wrench. Fill the fuel tank, and connect the cable to the negative terminal of the battery. Start the engine and check for fuel leaks.
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