Although this isn"t the easiest project in the world, friend can adjust the fuel pump ~ above your cool Cherokee there is no breaking the bank.

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This article uses to the Jeep cool Cherokee ZJ and WJ (1993-2004).

If it"s time for you to adjust out her fuel pump, don"t fret around how big of a project this is. You have the right to do it on your very own in simply a couple of hours. The project isn"t too difficult, even if you decision to perform it the right method and drop the fuel tank. Friend will conserve yourself part pain if you can drainpipe the gas or carry out the job as soon as your tank is nearly empty. Over there is an alternate method that entails cutting a hole in her cargo bay over the pump, yet this is no recommended because that both safety and security concerns and the possibility of cutting right into fuel lines and also having come replace much more than simply the pump. Fuel pumps themselves space not really expensive, but the labor expenses will be considerable, so save yourself a many dough by law this job yourself.


Materials NeededHydraulic floor jackJack standsWheel chocks or blocksFlat head and Phillips head screwdriversShop ragsCatch pan or container for spilled gasolineReplacement tank straps if applicableWood blocksVaseline

Step 1 – Disconnect her battery

Whenever you are working in your engine compartment, or any kind of component that the fuel system, it is always a good idea come disconnect your battery. So go ahead and disconnect the an unfavorable (black) battery terminal.

Figure 1. Disconnect an adverse battery terminal.

Please perform this task in a well-ventilated area, and also do not smoke or have any kind of heat as well as flame resources in your working area.

Step 2 – Jack up the rear end of your Jeep

Place wheel chocks in prior of the prior wheels and also jack increase the behind of your Jeep. Ar jack stand in the approved locations and also lower the Jeep onto the jack stands.

Figure 2. Usage jack stand to host up the behind of your Jeep.
Pro Tip

Always usage jack stands when working under your Jeep. Never ever use a hydraulic floor jack alone when working under it.

Step 3 – remove the inside fender

Use a Phillips head driver to remove the left, or driver"s side, behind inner fender cover. This will offer you access to the fuel filler neck.

Figure 3. Usage a Phillips head screwdriver to remove the within fender screws.

Step 4 – Disconnect filler neck

Use a flat head driver to disconnect the water tap clamp native the filler neck and also pull turn off the fuel hose.

Figure 4. Disconnect hose from filler neck.

Step 5 – Disconnect tank vent hose and also fuel pump power supply

Use your flat head driver to eliminate the clip that holds the vent water tap to the gas tank. Pull the hose off the tank and also then disconnect the rapid disconnect that the strength supply because that the fuel pump.

Figure 5. On slide up the red locking clip and pull apart the quick affix wiring harness.

Step 6 – remove the tank straps

Place some wood blocks under the gas tank to prevent it from dropping, or usage your hydraulic floor jack with some slight push on the tank to save it native falling come the floor. Use a ratchet with extension to unbolt the strap native the frame.

Figure 6. Eliminate the tank straps come drop the tank.

Step 7 – reduced the tank and also remove fuel line from the pump

You don"t have a ton of slack in the fuel heat from the tank come the fuel pump. As soon as those straps space off, usage the floor jack to lower the tank only around a foot; reduced the give thanks to slightly and just sufficient to obtain your hands in over there to disconnect the fuel heat from the height of the fuel pump. Girlfriend don"t need any type of tools come disconnect this line, since it snaps off v a slim squeeze and also a pull.

Figure 7. Disconnect the fuel water tap from the fuel pump.

Step 8 – remove old fuel pump

Once the fuel heat is disconnected from the fuel pump, the tank have the right to be fully removed indigenous under the Jeep. Move the tank to a flat area wherein you have actually plenty of room come work. The fuel pump is secured right into the tank v a locking ring. Revolve the ring counterclockwise come loosen and also remove it. Collection the ring aside and also then pull the end the old fuel pump.

Figure 8. When the locking ring is removed, the old fuel pump lifts best out of the tank.

Step 9 – Install brand-new pump

Use part Vaseline about the base of the optimal of the brand-new fuel pump, therefore it renders a pretty water chop seal versus the tank wherein it sit in there. Take it care, once inserting the brand-new pump, that you carry out not damages the float and the fuel level gauge. As soon as you have actually the pump seated into the tank, apply some press to make sure it is in all the means and change the locking ring. Rotate it clockwise to lock the in place. Move the tank back under her Jeep top top the floor jack and raise it back up into position, around a foot from whereby it ultimately will go. You will require a brand-new fuel line retaining clip to attach a fuel line to the new fuel pump. Reach earlier in and re-attach the fuel line to the fuel pump. Progressive the tank back into position and also reconnect the tank straps. If they show up worn or questionable at all, use two brand-new tank straps. For sure the straps, then reconnect the fuel pump power supply and also the venting hose. Reconnect the fuel line to the filler neck and reattach the within fender wall. Begin your Jeep and check for leaks. If none, drop the Jeep and also you are all set.

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Figure 9. Take treatment when inserting the brand-new fuel pump.

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