Fuel Filtration in Jeeps

[Bruce Kerney]

Not being totally familiar with Jeeps I was wanting to know and may possibly help others venturing into outback areas, how and what type of fuel filters Jeeps use and where is the filter located. The chances of fuel contamination in country areas is much greater than city and do Jeep owners bother putting in additional filtration
Where is the existing filter located, in fuel tank, hard to get to and change, or in engine bay, easy to inspect and change, is it a canister that you can see into, with a glass bottom to see for water, can it be readily "blead" to remove water or one that you can't see or inspect so you have no idea the state of the nation.
The cheap plastic in line ones go some way to additional filtration, but a better heavier duty one may be more expensive but a lot cheaper if stranded in the outback with a car that isn't going anywhere.....
Looking forward to your comments..........
Does anyone use "Upper Cylinder Lube" Additive to petrol fuel tanks, or the old "Half a cup of Metho" into the tank to "mix" with any water in tank to get rid of the water through the system without hurting the motor

[casey]

im not sure, but isn't it pretty standard to have two - one on the tank outlet to filter out the larger particles and a finer filter further down the line in the engine bay?

[glend]

Very important for diesels, and diesel filters are fairly expensive in comparison to petrol ones. the Diesel filters do separate water from the fuel and have been known to become water bound and thus cut off fuel to the engine. Diesel filter heads have to be primed after replacement or if you've run out of fuel, by manually pumping them. The latest diesel filters on the KJ and JK CRDs also have heated elements that have caused some problems in cold climates but not here. The question of whether to replace the diesel filter if going on an extended trip depends largely on your kilometres on the present filter and how close you are to the recommended change point. Many people with CRDs change the Mopar filter over to a finer aftermarket filter as early as 20,000km mark. After market diesel filters are available that filter to 2 microns, the Mopar filter is no where near that fine.

Hope that helps the diesel people.

[Bruce Kerney]

So where on a JK Petrol model exactly is the fuel filter located, in the tank or engine bay.....

[casey]

i was half right, there are two, but they're both in the bottom of the tank.

from: http://www.jk-forum.com/showthread.php?t=48521&highlight=fuel+filter
(taken from the service manual I think)

"Two fuel filters are used. One is located at the bottom of the fuel pump module. The other is located inside the module. A separate frame mounted fuel filter is not used with any engine.

Both fuel filters are designed for extended service. They do not require normal scheduled maintenance. Filters should only be replaced if a diagnostic procedure indicates to do so."


Parts catalogue:
http://moparpartsamerica.com/partlocator/index.cfm?action=getJointLocator&siteid=214583&chapter=&Sectionids=0,2782&groupid=2783&subgroupid=2786&componentid=0&make=17&model=Wrangler&year=2008&graphicID=WJ07620&callout=17&catalogid=2&displayCatalogid=0

a few other threads about removing fuel filters:

http://www.jk-forum.com/showthread.php?p=392099&highlight=fuel+filter
http://www.jk-forum.com/showthread.php?p=398564&highlight=fuel+filter

[Steve F]

The post 97 XJ's also have the filter in the tank, I think the pre 97 run the external ones like the plastic jobs you get at the auto parts place.

Cheers
Steve