fuel filter change

dcxman · 10-09-2006, 11:02 AM

Okay, who has changed the fuel filter. Does it take a crow bar, or just a
big hammer?

rob92xj · 10-09-2006, 11:21 AM

Should need just a few wrenches, don't for get to prime the fuel system after replacing the filter and DO NOT pre fill the filter install it empty, pump the primer about 10x and try to start it if it does not start in ten seconds, pump the primer another 10x. Cranking the engine over 10 seconds willl damage the CP3 high pressure pump, it's a good pump just not tolerent of no fuel volume due to the very close tolerences in it.

Maximum Carnage · 10-09-2006, 02:33 PM

I haven't looked for the fuel filter yet. But where is is located?

rob92xj · 10-10-2006, 05:49 AM

The CRD fuel filter is next to the brake booster. Gas KJ it's in the tank.

m90daytona · 10-10-2006, 06:49 AM

Quote:

Originally Posted by rob92xj

The CRD fuel filter is next to the brake booster. Gas KJ it's in the tank.

so if its in the tank how do you change it? pull the sending unit?

dcxman · 10-10-2006, 08:21 AM

Quote:

Originally Posted by rob92xj

Should need just a few wrenches, don't for get to prime the fuel system after replacing the filter and DO NOT pre fill the filter install it empty, pump the primer about 10x and try to start it if it does not start in ten seconds, pump the primer another 10x. Cranking the engine over 10 seconds willl damage the CP3 high pressure pump, it's a good pump just not tolerent of no fuel volume due to the very close tolerences in it.

Is it necessary to loosen the relief valve to pump air out of the cannister? I believe that is what I did when I drained the filter once checking for water.

rob92xj · 10-10-2006, 11:51 AM

The bleeder valve next to the filter is for draining the water out of the water seperator, lossen the bleeder then open the drain valve.
Have the bleeder closed when you are priming the fuel system with the hand pump mounted to the filter housing.

dcxman · 10-10-2006, 12:18 PM

Quote:

Originally Posted by rob92xj

The bleeder valve next to the filter is for draining the water out of the water seperator, lossen the bleeder then open the drain valve.
Have the bleeder closed when you are priming the fuel system with the hand pump mounted to the filter housing.

Thanks Rob,
One more question.. Does the cannister screw on?How does it work?
Also, today changing diff oil in the 96 Ram. Just using OEM rated non-syn oil.
What do you use in yours?

m90daytona · 10-11-2006, 10:03 AM

off topic, can you change the fuel filter in the 3.7 liberty if its in the tank?

Steven73 · 10-11-2006, 11:26 AM

Quote:

Originally Posted by m90daytona

off topic, can you change the fuel filter in the 3.7 liberty if its in the tank?

I was told by the Jeep dealer that it's a lifetime filter, and that it doesn't have to be replaced until the time comes to also change the injector pump. They said that today's gasolines are refined well enough so that changing filters every 6,000 miles isn't necessary. At least that's what they said. I use a bottle of STP fuel injector cleaner in my gas tank every 3000 just to make sure everythings kosher.

rob92xj · 10-11-2006, 11:43 AM

The gassers fuel filter should be changed every 100,000 miles but nobody does replace it. It is mounted on the bottom of the fuel pump module.

DCXman I used 75W140 in my 00 Rams front and rear diffs and my 03 Ram uses 75W90 syn in the front and 75W140 in the rear, anything with a tow package or used to tow anything should have 75W140 in the rear.

lucas/liberty · 10-11-2006, 11:53 PM

Quote:

Originally Posted by rob92xj

The CRD fuel filter is next to the brake booster. Gas KJ it's in the tank.

gassers have two fuel filter, 1 is in tank, 2 is right next to it, access from inside the cab/trunk per chilton book manual...

BVCRD · 10-12-2006, 07:20 AM

Quote:

Originally Posted by lucas/liberty

gassers have two fuel filter, 1 is in tank, 2 is right next to it, access from inside the cab/trunk per chilton book manual...

The one on the fuel pump is likely the most frequently changed. Unfortunately, the one in the tank is probably the most needed to be changed (if ever) because it is the first line of defense.

rob92xj · 10-12-2006, 11:46 AM

Quote:

Originally Posted by lucas/liberty

gassers have two fuel filter, 1 is in tank, 2 is right next to it, access from inside the cab/trunk per chilton book manual...

There is only one filter on the 2.4L/3.7L KJ's and its in the tank...get a real service manual with the correct info.
Sorry for the slight bash on the Chiltons manual but there info is not always right.

The only KJ's with an external filter is the 2.8L CRD.

10-11-2006, 10:03 AM	#9
m90daytona Registered User Join Date: Oct 2006 Location: Quakertown Pa Posts: 79 Profile Gallery Classifieds My Jeeps	off topic, can you change the fuel filter in the 3.7 liberty if its in the tank?