Jeep WJ Grand Cherokee Fuel Filters

By Jeep Experts

Welcome to the jeepExperts.com in-depth web page on WJ Generation Jeep Grand Cherokee gas filters. We have organized as a lot info as we might discover right into a useful article under. Is one thing incorrect or lacking? Please get in contact with us and we’ll repair it!

All WJ fashions have two gas filters, a strainer filter on the backside of the gas pump module contained in the gas tank and one exterior filter inside the gas stress regulator. Both filters are designed for prolonged service. They don’t require regular scheduled upkeep. Filters ought to solely get replaced if a diagnostic process signifies to take action.

The mixture gas filter/stress regulator is situated in entrance of the gas tank and above the rear axle. It is transversely mounted to a chassis crossmember (left-to-right). The filter/regulator is provided with 3 gas line fittings (2 at one finish and 1 on the different finish). The single becoming going through the left aspect of the automobile is the availability line to the gas rail. The 2 fittings going through the fitting aspect of the automobile are linked to the gas tank. Of these 2 fittings, the becoming in the direction of the entrance is used for gas return to the gas tank. The becoming in the direction of the rear is a stress line.

External filter/regulator elimination

 

WARNING: THE FUEL SYSTEM IS UNDER A CONSTANT PRESSURE (EVEN WITH THE ENGINE OFF). BEFORE SERVICING ANY FUEL SYSTEM HOSES, FITTINGS OR LINES, THE FUEL SYSTEM PRESSURE MUST BE RELEASED.
See also  Jeep WJ Grand Cherokee Liftgate Trim and Components

1. Remove gas fill cap.
2. Remove gas pump relay from Power Distribution Center (PDC). For location of relay, check with label on underside of PDC cowl.
3. Start and run engine till it stalls.
4. Attempt restarting engine till it is going to not run.
5. Turn ignition key to OFF place.
6. Disconnect damaging battery cable at battery.
7. Raise automobile.
8. Clean space round 3 filter/regulator fittings.
9. Disconnect gas provide, gas return and gas stress traces at filter/regulator. Special instruments could also be required, see “Quick-Connect Fittings” (PDF file).
10. Remove 2 mounting bolts and take away filter/regulator.

External filter/regulator set up

1. Before putting in filter/regulator, make sure all fittings are cleaned of all grime and contaminants.
2. Be certain o-ring is positioned into gas return becoming in filter/regulator.
3. Apply a small quantity of unpolluted engine oil to o-rings.
4. Position filter/regulator to physique and set up 2 bolts. Tighten bolts. Refer to Torque Specifications.
5. Connect 3 fittings. Refer to Quick-Connect Fittings PDF file.
6. Connect damaging battery cable to battery.
7. Start engine and examine for leaks.

 

 

WJ gas filter/regulator half numbers

(Numbers in daring symbolize advisable half/latest half for the mannequin yr listed)

Engine 1999-2004 MSRP
4.0 / 4.7 52100283AG $83.75

 

Fuel pump/sending unit

All Grand Cherokee WJ’s function a mixture gas pump/sending unit that’s mounted contained in the fuel tank. Replacing the gas pump is a considerably concerned course of that requires elimination of the gas tank. For info on this process reference the Factory Service mannequin for the precise mannequin yr.

See also  Jeep WJ Grand Cherokee Wiring Diagrams and Pinouts

(Prices listed are for reference functions solely and should differ by supplier. Parts aren’t accessible from this web page.)

Leave a Comment