6.4L Fuel Filter Change

[j21black]

Going to swap out my fuel filters tomorrow. Dealer did the 10,000 mile change, I am going to do the 20,000 mile change.

I have read the how 2's on here and on some other sites. I also googled it and read some other instructions.

A couple of the instructions I read said to take a turkey baster and suck the remaining fuel out of the secondary housing prior to doing the install. Is this really necessary? I can't see what difference it would make.

[PolarBear]

Not necessary. Drain the water seperator, crack open the cap on the top of them engine a little. Do the lower filter on the frame rail first. Then do the upper filter. Do the key cycling procedure to prime the system and you're good to go. NathanScott's writeup is the one I used for my first time on the 6.4 and it worked great with no diesel bath.

[NathanScott]

Fuel Filter Change Write-up

[sinner6.0L]

i start it up and run it after each filter change. do the lower one, cycle the key a couple times, run the engine for 30sec or so, then do the upper. keeps the low fuel system from loosing too much prime.

[CJoe31]

I just can't believe how ford decided to put the second fuel filter on the frame rail like that. I suppose the first time it'll seem like a real pain in the ***, and then trying to keep any dirt out while putting in the new filter. My were done recently, and I don't think they will last the next 10K before I get an air dogg, especially after my first filter change experience, and ensuring the fuel to the motor is as good as it can be.

[j21black]

Originally Posted by PolarBear

Not necessary. Drain the water seperator, crack open the cap on the top of them engine a little. Do the lower filter on the frame rail first. Then do the upper filter. Do the key cycling procedure to prime the system and you're good to go. NathanScott's writeup is the one I used for my first time on the 6.4 and it worked great with no diesel bath.

Only problem is my drain has not been draining for some time. I plan to put a bucket under the filter assembly, put several extensions on the socket and losen it from as far back as possible.

The job got pushed back till next weekend. Got some rain last night and the driveway is pretty wet. Not to mention it is only about 40 degrees outside.

Suppossed to be Sunny and 75 next Saturday so I am going to wait another week.

[Jhaley]

Good luck with filter change, had mine changed along with oil on Friday, had water in fuel. Changed oil and filter put some fuel treatment in, truck went about 6 miles before shutting down on the side of the road. A quick scan says low fuel rail pressure (ford said water prob destroyed fuel pump).

[j21black]

Went ahead and did it and an oil change in the driveway tonight. Got home around 6pm and it was 63 and sunny out so I figured what the hell. Whole thing took about an hour with about half of that time spent running down to the basement looking for a cheater pipe. Dealer did the last change and the secondary filter cap was on tight.

I did go 5600 miles on the oil and 11000 miles on the fuel filters prior to changing.