how to repair a gas tank leake in 1999 jeep grand cherokee

Here is a quick guide on how to easily repair a leaking gas tank on your 2003 Jeep Grand Cherokee. You can take it to a repair shop and spend a lot of money, or you can do it yourself and save yourself about $ 100. So, fixing a leaky gas tank needs to be done as soon as the leak is noticed. Refer to Fuel Tank Installation.Can not only cost you a lot of money in wasted fuel, it can be very dangerous and result in a potentially deadly fire or explosion. (8) Connect fuel return and pressure lines to fuel pump module fittings (Fig. (6) Install Special Tool 6856 to locknut. This step must be done to prevent float/float rod assembly from contacting sides of fuel tank. Align arrow to tick mark on top of fuel tank. (5) Rotate module until indexing arrow at top of module (Fig. (4) Position locknut over top of fuel pump module. (3) Apply clean water to locknut threads. (2) Using new gasket, position fuel pump module into opening in fuel tank. Do not use carburetor cleaner to clean threads. (1) Thoroughly clean locknut threads and mating fuel tank threads. The fuel pump module will spring up slightly after locknut is removed.ĬAUTION: Whenever fuel pump module is serviced, module gasket must be replaced. Install Special Tool 6856 to fuel pump module locknut and remove locknut (Fig. (5) The plastic fuel pump module locknut is threaded onto fuel tank (Fig. Refer to Quick-Connect Fittings for procedures. (4) Disconnect fuel return and pressure lines from fuel pump module fittings (Fig. (3) Thoroughly wash and clean area around pump module to prevent contaminants from entering tank. (1) Perform Fuel System Pressure Release Procedure. BEFORE SERVICING FUEL PUMP MODULE, FUEL SYSTEM PRESSURE MUST BE RELEASED. WARNING: THE FUEL SYSTEM IS UNDER A CONSTANT PRESSURE (EVEN WITH THE ENGINE OFF).

Refer to Fuel Pump, Fuel Filter/Fuel Pressure Regulator and Fuel Gauge Sending Unit.įuel tank removal will be necessary for fuel pump module removal. If the electrical fuel pump requires service, the entire fuel pump module must be replaced. The fuel gauge sending unit and pick-up filter may be serviced separately.

Fuel gauge sending unit (fuel level sensor).

A gasket between tank flange and module.

A threaded locknut to retain module to tank.

A separate fuel pick-up filter (strainer).

How to repair a gas tank leake in 1999 jeep grand cherokee