Crown Vic Fuel Filter

[kameron13462]

Hi All,

Anyone have experience changing out the fuel filter in a Crown Vic? My understanding is it is a coalescing filter for water that sneaks in over time and fill-ups. Also, does anyone have the Ford specs / manual for the CNG fuel system?

Thanks,

Kameron

[turbocohen]

Re: Crown Vic Fuel Filter

It captures aerosols that carry over from the fueling station and some oils and moisture from the pipelines.
Fill up at stations where they maintain the station equipment and you should not have a lot of trouble.
Buy the ford manual to get the best detailed info.

[cng-vic-ut]

Re: Crown Vic Fuel Filter

changing out the fuel filter isn't difficult, all it takes is jacking up the vehicle in the air, the filter bowl and regulator are located on the driver's side of the vehicle on the frame just in front of the rear tire. Jack the vehicle up in the air, remove the skid plate cover and you will see the large regulator, smaller filter bowl, and the red manual gas shut off valve. First obviously have the car shut off, and shut off the manual valve right there. There is a cap at the bottom of the filter bowl, I think it is a quarter inch allen wrench you will need to insert into the bottom of the filter bowl, it will suddenly start releasing pressure from the filter bowl and allow the gas to escape and vent into the atmosphere, it will smell like methane so just back away as it vents. After a minute or two remove the cap futher and allow the remaining pressure to vent, you can then remove the cap. You will then need a cresant or ford wrench to put on the flat sides on the bottom of the filter bowl and unscrew the bowl completely, this will expose the filter and allow you to change it. And while you are at it, do the injector cleaning procedure curtis has provided instructions for, it will ensure you will get more power and that your car will not idle roughly when it is cold.

[vaughnr007]

Re: Crown Vic Fuel Filter

Where can you get the filter. I'm sure if you go to the Ford dealer it will cost $$$$$$.
Vaughnr007

[cngmike]

Re: Crown Vic Fuel Filter

http://www.parker.com/finitefilter/c...Web%202004.pdf go to page 67.

It is, to the best of my knowledge, A FEC112-10 housing the element should be a CLS112-10

[beano_brady]

Re: Crown Vic Fuel Filter

I just bought some here. Its not $5 but thirteen is still alot cheaper than everywhere else I could find. Mine arrived yesterday and there is no difference that I can see between my new Racor brand and Parker. (I think the original is made by parker)

http://www.o-f-i.com/

They are on close out right now, so I bought 2.

I dont know if this is hard on anything but I prefer to de-pressure the lines by running the engine. That way I am only dealing with a couple of PSI.

[maxman]

Re: Crown Vic Fuel Filter

Thought on filters and depressurizing lines...
The filters are $107 dollars at a Ford dealer in SLC. I believe that dealer buys them for about $63 dollars from one of the highly touted CNG companies in SLC. I also have good reason to believe that company is buying them for about the same price my son found on the internet, probably even the same company and filter. The coalescent filter is actually a fairly common filter in industry.
As far a depressurizing the lines, I have a CNG diagnostic manual Ford puts out for the CNG trucks. It tells how to depressurize the lines, but I can't remember. I don't know that you could run the pressure out as in order for the system to work the solenoid on valve will be on, keeping pressure in line. The regulator drops pressure to 102 PSI for the system, and the CNG system shuts down when pressure drops to 75 PSI. Again, I am not familiar with your system. Like I said before, I might be wrong, and just because I'm wrong doesn't stop a guy from showing off his ignorance.
Good Luck
Max

[Mshepcomm]

Re: Crown Vic Fuel Filter

I just bought a filter for about $34 for my Vic. As to the process to change it, Curtis posted the Ford Service Bulletin at the top of the Ford vehicles board for rough idle which includes removing/reinstalling the filter

Service Bulletin concerning Crown Vic rough idle
http://www.cngchat.com/forum/showthread.php?t=613

[02cvpi]

Re: Crown Vic Fuel Filter

Thank you for this post. I just did my CNG filter myself and injector cleaning and it was very easy to do I bought the cleaner from Ford for 6.50 for a large bottle which is enough to do lots of cleanings. My filter was saturated with the oil and the filter bowl had lots of oil in it as well. I emptied the residual oil and installed the new filter and "o" ring I purchased from Parker for 5 bucks and the car runs great.

[kameron13462]

Re: Crown Vic Fuel Filter

Do the coalescing filters from Racor or Parker come with O-rings, or do you need to purchase it separately? If separate, what is the part number?

[NGXV]

Re: Crown Vic Fuel Filter

Here is a link to a post I created that gives step by step instructions about how to change your own coalescent filter. The process is simple. If you can cange the oil in your car, then you can definately change your coalescent filter. There are links in the post about where to purchase the filter and I include my phone number so in case you get stuck you can call me. Here is the post: How To Change a Coalescent Fuel Filter. The Proceedure, Method (CNG, Natural Gas NGV)
Good Luck

Hi All,

Anyone have experience changing out the fuel filter in a Crown Vic? My understanding is it is a coalescing filter for water that sneaks in over time and fill-ups. Also, does anyone have the Ford specs / manual for the CNG fuel system?

Thanks,

Kameron

[Surfdancer]

Re: Crown Vic Fuel Filter

To bleed the pressure in a CNG vehicle, I simply de-energize the solenoid valve(s) on the tank(s) by pulling the appropriate fuse and running the engine to consume residual fuel. You will leave a little low pressure fuel in the high pressure line, but not very much.

I then loosen the fuel line from the regulator to bleed remaining pressure, reconnect it and remove the filter dripwell. One less o-ring to change if it is not old.

[bruincaster]

Re: Crown Vic Fuel Filter

I realize this is an old thread, but I figure theres still a lot of relevant info here. I was just wondering in the case where theres no oil in the filter bowl, what then? I cracked open the drain valve, I dont believe its ever been changed in 80k miles, and nothing came out, bone dry. When I took it off, the gasket / o ring was damaged, I'm pretty sure I damaged it when the initial pressure opened up.

I read in some thread that wd-40 can help with the no oil scenario? I have a little bit of rough start lately when its cold, but it idles fine. its a 98 factory cng crown vic.