HFCM filter, does it matter if....
Got Diesel?
Joined: Jan 2004
Posts: 4,345
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Originally Posted by ag-ford-4x4
Does it make any difference if you put the filter in the cap and then screw it on or if you put the filter in the housing and THEN screw on the cap? My manual doesnt say, but a tech page from ford says to snap the filter into the cap, and then install, which is what i did. But there is a slit in the filter where it looks like it is supposed to seat. As i screwed it on, every turn had a hard spot in it until it got on a ways, then it was OK, which i assume was the filter seating.
Havent purged the air, need info so i can fix before it fills with fuel.
Havent purged the air, need info so i can fix before it fills with fuel.
Good as new and my truck started with just 1 or 2 extra rotations of the motor... have never cycled the starter on/off 3 times like some do.
O-rings just slide on and off and seat just fine in the last groove of the filter cap(s). In my haste, I did not suck out the fuel in the small engine mounted housing... just hope there wasn't anything floating in there?
You have to be double jointed to get the filter on the frame in and out.
New User
Joined: Dec 2005
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Be sure to lube the o-ring real good or it might tear and then the truck will not run. Sucks air and leans out, no power. Personal experience here. I thought the diesel fuel that was present was enough lube, not true. Second time around I used Motor Oil and it went on with no problems. Valuable lesson! Note: I found the needed 36mm 1/2 drive socket at Sears for $6.99.
Got Diesel?
Joined: Jan 2004
Posts: 4,345
Likes: 21
Originally Posted by ag-ford-4x4
I have no idea why you are supposed to suck out hte fuel in the housing...i did it, but i dont know why.
Sediment on the outside of the filter now mixed with the clean fuel when you pulled the filter out. Suck out the fuel present and hopefully any sediment goes with it. Leaving it in now mixes and will be sucked up into the injectors.
Got Diesel?
Joined: Jan 2004
Posts: 4,345
Likes: 21
Good weblink below...
http://www.forddoctorsdts.com/articl...icle-06-03.php
Great info on filters and fuel quality.
Good reason to check or change often or on schedule.
Use only Racor/Motorcraft or IH fuel filters and never WIX as they lack the white membrame on the HFCM filter.
http://www.forddoctorsdts.com/articl...icle-06-03.php
Great info on filters and fuel quality.
Good reason to check or change often or on schedule.
Use only Racor/Motorcraft or IH fuel filters and never WIX as they lack the white membrame on the HFCM filter.
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wildstang
1994.5 - 1997 7.3L Power Stroke Diesel
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Aug 5, 2009 09:25 AM
