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  #49  
Old 01-10-2013, 09:15 PM
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Re: Replaced Fuel Filter

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Originally Posted by TJXJWJ View Post
If it hisses while it runs, I'd park it and get under it for a closer look. You might be able to narrow it down further. The fuel filter is easy to get to if you're laying in front of the rear axle and looking up over the tank. You should be able to reach up and grab it pretty easily, especially if you have a set of ramps. The only other thing I can think of back there is gas filler and maybe the charcoal/EVAP canister which is tucked in the corner if I remember correctly.
It drops off briefly when given a little throttle. Yes it sounds like it prior the rear axle. When I get a few minutes I will check into it further. Thanks
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  #50  
Old 04-05-2013, 10:03 AM
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Unhappy Re: Replaced Fuel Filter

Hello all! Here it is nearly a year later this thread was first post. Even now I find the information very helpful. Wish I had seen it a month ago when I too replaced my fuel filter.
On my fourth WJ now due to the third, a 2000, being totaled. Some yahoo driving down an 8% incline pulling a trailer with no snow chains on any axle took care of that!
I now have a 2002 limited. Love these Jeeps. However started getting code P0302 7000 miles after purchase. Misfire cylinder 2. Read up on info on another Jeep forum. I have to say the info on this forum is far far better!
Changed the fuel filter and the rough idle did smooth out. My understanding is with a clogged filter, the injectors could be starving for fuel.
Anyway, the misfire code on cylinder 2 remained. I then changed all the injectors and plugs. Made sure the plugs were the plain Jane copper core type. Engine threw P0302, P0301, P0314. Then idling in the driveway at 1200rpm with the help of a stick between the seat and gas pedal, the right head gasket blew. Now at idle I am hearing a steady suction or blowing sound directly in front of and below the intake manifold. Using a section of garden hose as a listening tool, the sound is more up near cylinder 2.
Crap! Using the FSM and the info I am picking up here through the search process, I am gathering my confidence to attack this project myself. Can not afford a shop to do this. I am finding the cost of the tools will set back the time I can begin. Because I feel it will take me several weeks to perform this repair, renting the tools is not what I want to do.
FSM says special tools Miller 8514, 8515, 6958 w/ adapter pins 8346, a hose clamp tool? and a 3 jaw damper removal tool 8454 is needed.
I realize this is a very complicated job. Never done this before so I know it is going to take me a couple of months. Money is very tight being retired.
So, I have checked Craiglist, Ebay, and several other possible options for these tools. Millertools.com seems to be the least expensive.
For now, my baby sits in the driveway. Planning on taking 100s of pictures so I will remember what goes where on the reassembly.
Thanks for the help guys!!
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  #51  
Old 04-05-2013, 12:18 PM
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Re: Replaced Fuel Filter

Best of luck to you! We'd love to see a write up on how you did it and what you learned along the way!
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  #52  
Old 04-17-2013, 07:04 AM
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Re: Replaced Fuel Filter

I did this last summer with a Napa filter and noticed improved idle and better throttle response. Certainly one of the easier "modern" fuel filters I have changed.
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  #53  
Old 04-17-2013, 09:39 AM
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Re: Replaced Fuel Filter

Quote:
Originally Posted by cdplayer View Post
Hello all! Here it is nearly a year later this thread was first post. Even now I find the information very helpful. Wish I had seen it a month ago when I too replaced my fuel filter.
On my fourth WJ now due to the third, a 2000, being totaled. Some yahoo driving down an 8% incline pulling a trailer with no snow chains on any axle took care of that!
I now have a 2002 limited. Love these Jeeps. However started getting code P0302 7000 miles after purchase. Misfire cylinder 2. Read up on info on another Jeep forum. I have to say the info on this forum is far far better!
Changed the fuel filter and the rough idle did smooth out. My understanding is with a clogged filter, the injectors could be starving for fuel.
Anyway, the misfire code on cylinder 2 remained. I then changed all the injectors and plugs. Made sure the plugs were the plain Jane copper core type. Engine threw P0302, P0301, P0314. Then idling in the driveway at 1200rpm with the help of a stick between the seat and gas pedal, the right head gasket blew. Now at idle I am hearing a steady suction or blowing sound directly in front of and below the intake manifold. Using a section of garden hose as a listening tool, the sound is more up near cylinder 2.
Crap! Using the FSM and the info I am picking up here through the search process, I am gathering my confidence to attack this project myself. Can not afford a shop to do this. I am finding the cost of the tools will set back the time I can begin. Because I feel it will take me several weeks to perform this repair, renting the tools is not what I want to do.
FSM says special tools Miller 8514, 8515, 6958 w/ adapter pins 8346, a hose clamp tool? and a 3 jaw damper removal tool 8454 is needed.
I realize this is a very complicated job. Never done this before so I know it is going to take me a couple of months. Money is very tight being retired.
So, I have checked Craiglist, Ebay, and several other possible options for these tools. Millertools.com seems to be the least expensive.
For now, my baby sits in the driveway. Planning on taking 100s of pictures so I will remember what goes where on the reassembly.
Thanks for the help guys!!
Here's a followup. What I initially thought was a blown head gasket on the right side because I was getting exhaust bubbles through the radiator cap opening, turns out to also be a bent valve on #2 cylinder. I can see it through the intake port. After removing the valve cover the cam area looked very clean. Free of any deposits. I see no evidence of water in the oil. None on the dip stick. And no milky residue on the oil filler cap. I have to give credit to the Mobil one synthetic oil and Chevron mid grade gas for the cleanliness though. I do see through the intake port opening that the walls looked washed. Compared to all other ports.
So for now, I am awaiting delivery of OTC 6689 Chrysler/Jeep master cam tool set that should be here later today. I also am looking at Miller 8516A. I understand I need this to compress the valve spring to remove the valve.
So far the least expensive is located on the Miller tool site at $74 + shipping. I managed to remove all the upper bolts on the exhaust manifold, but the two center bolts underneath have proven a challenge. I do not have air tools to help. So I will try and remove the right head with the exhaust manifold still attached. It looks like I have room to to that.
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  #54  
Old 04-17-2013, 10:09 AM
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Re: Replaced Fuel Filter

When a valve stem is bend, a piston has hit it. Can be a problem that the timing chain has skipped teeth or that the valve was sticking.
I never removed cylinder head, but i' m almost sure that some others did it without most of the special tools. I did change my valve stem seals and made my own valve spring compressor tool, which probably did cost me 15 dollar in material and some hours of work.
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  #55  
Old 10-10-2013, 10:55 PM
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Re: Replaced Fuel Filter

replaced my filter today and took a gas bath and needed a 11mm wrench to get the last connecter off.
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