Jeep Wrangler: VEHICLE MAINTENANCE / Fuel Filter Replacement — Diesel Engine

NOTE:

Using a fuel filter that does not meet the manufacturer’s filtration and water separating requirements can severely impact fuel system life and reliability. We recommend you use Mopar® Fuel Filter. Must meet 3 micron rating.

CAUTION!

• Diesel fuel will damage blacktop paving surfaces. Drain the filter into an appropriate container.
• Do not prefill the fuel filter when installing a new fuel filter. There is a possibility debris could be introduced into the fuel filter during this action. It is best to install the filter dry and allow the in-tank lift pump to prime the fuel system.

1. Ensure engine is turned off.
2. Remove the fuel filter protective cover to access the fuel filter assembly.

   

   1. Retainers
   2. Fuel Filter Protective Cover
3. Place drain pan under the fuel filter assembly.
4. Open the water drain valve, and let any accumulated water and fuel drain.
5. Close the water drain valve.

   

   Fuel Filter Assembly

   1. Water Drain Valve

6. Wipe clean the underside of the filter housing to prevent contamination from entering fuel system during service.

7. Remove the fuel filter cap and filter from the housing using a socket. Rotate counterclockwise for removal.

   

   1. Fuel Filter Cap

   2. Socket Adapter

8. Remove the used fuel filter cartridge from the cap and dispose of according to your local regulations.

9. Wipe clean the sealing surfaces of the cap and housing.

   CAUTION!

   Take care when handling the new fuel filter to prevent contamination from entering the fuel system.

10. Lubricate o-ring on the cap with clean engine oil.
11. Install the new fuel filter cartridge onto the cap.
12. Insert the cap and filter into the housing with clockwise rotation, use a socket to tighten.
13. After engine start, verify the fuel filter cap does not leak.