Fuel system im getting no fuel to the in take, i've changed the filter, internal and external fuel pumps.

USA jeep, ZJ. grand.
NO. (only Liberties later)
the filter was moved to inside tank in 2005
so when fuel pressure is low, Is it?
the filter outside tank is #1 service.


the rule of filters is here.
the 02 liberty had a hatch..
see filter rules, and covers pump. too.
http://jeepdied.com/


click fuel system.
here, ZJ grand

http://www.morris4x4center.com/knowledge-base/index.htm?utm_source=cj#service

chapter 14, fuel
page 20 is tank, in fact its all there, and 100% FREE,
no engine stated, and fuel system is not the same.
page 17 cover pump, in tank.

The logical thought on this would be to ask if you changed the filter, also if the pump is electric and in the tank, was the strainer changed? If EFI have you checked fuel flow before and after the fuel pressure regulator? Can you hear the pump running? Did you check the fuse for the fuel pump?
I'd start by making sure the pump has voltage, then disconnect the fuel line before the filter and see if there's any fuel in the line. Then have someone just turn the ignition on momentarily to see of the pump is pumping. If it isn't you still have an issue with the pump. Finally, if you have an in tank pump, and have installed an external line pump to save bucks, this doesn't always work because there are check valves in some internal tank pumps that prevent fuel flow.

Is it a diesel. If so it could be the particulate filter blocked, or it could be a failed fuel pump or something internal of the pump, or if a petrol it could be a failed catalytic converter, undo the exhaust and see if that changes, if so then look closely at your exhaust.

there is no external fuel filter on your jeep, in 1997 they changed the design and put a filter sock over the fuel pump intake in the fuel tank. they only get changed when you end up replacing the fuel pump

Check your in line fuel filter.

Thanks for choosing FixYa and welcome to the site. A easy way to trace the filter is by going to the gas cap. Whichever side you fill gas at. Get under the vehicle and follow the gas lines that lead toward the front of the car. You will then run into the filter.

Your fuel pump is in tank and is electric. Rock Auto online shows pics and another possibility is fuel pump relay (they show it also)

There is not an external fuel filter. The fuel filter is in the gas tank. You might as well do them both.

you cannot change filter without bleeding it you can however fill the fuel filter with injector cleaner that can be put into filter and NOT into the fuel tank this will help also u can get a external primer pump and attach to the OUT side of filter and pump the fuel through good luck

Hi. This is more of a fuel filter issue than a pump issue although, a bad fuel filter will eventually destroy a fuel pump. When the filter is restricted or clogged, this will tend to work the pump harder than normal. this will over heat the pump, therefore, shortening its life span. I recommend replacing the fuel pump and filter and, adding a fuel additive like techtron fuel injector cleaner/water remover as well.

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