Changed Fuel Filters - rough run after sitting now

[sthompson134]

I just cahnged my oil and fuel filters for my '03 Excursion 6.0L. I followed the procedure and turned the key on/off 6 times. It ran fine. The next morning after sittng for 8+ hours it idled rough then ran fine after 2-3 minutes. I am thinking air in the fuel line. It ran great all day no problems. It sat at work for 8+ hours and did the same thing. The next morning the same result. It is apparent to me there is air in the fuel system but once it starts running fine I would think it had purged all the air out.

Does it take 3-5 days to purge it all out? Is there something I missed? FF caps are tight and there are no apparent leaks.

Any ideas?

THanks
SHawn

[SCUFFY828]

i can see it cranking and runing rough for a few seconds the first time , but not this long , if it only runs rough cold after sitting awhile , you might have something else going on, has it had the latest reclibration for cold start rough idle , if not may want to get it reprogrammed

[sthompson134]

I think it has the latest cal. It was running perfect before I changed the oil anf fuel filters. It only started after this.
THanks
Shawn

[SCUFFY828]

did you use aftermarket filters or ford filters, reason i ask is i had one the other day towed in , absolutly wouldnt start , passed all tests ,except had no fuel pressure , would not fill upper filter housing , guy said it ran good until he changed filters , then didnt run right and finally shut , caps were tight , no leaks , removed lower filter on frame replaced it with a ford filter and it started up and ran fine , no obvious reason , cant say thats your problem ,but a quick fuel pressure test would tell ya pretty quick

[sthompson134]

I installed Baldwin filters. They appeared to be identical to what was replaced. I was wondering if the filter was causing a problem. The odd thing is that after 2-3 minutes of rough running it is fine. It acts like there is slow air leak. It's possible the filter is restricting it but it seems odd that it would clear up within 2-3 minutes. That's what has me wondering what it is.

[SCUFFY828]

Originally Posted by sthompson134

I installed Baldwin filters. They appeared to be identical to what was replaced. I was wondering if the filter was causing a problem. The odd thing is that after 2-3 minutes of rough running it is fine. It acts like there is slow air leak. It's possible the filter is restricting it but it seems odd that it would clear up within 2-3 minutes. That's what has me wondering what it is.

if it had an air leak it wouldnt clear up at all i dont think, its bad to say ,and i usually have something in my head ive run into to help you out , if it was in front of me i could figure it out , but without looking at the truck its hard to say , do you have a means of getting codes pulled , might want to do that , i still think it would be a good idea to get a fuel pressure test run

[sthompson134]

Scuffy828,

Thanks for all the help. I will check into getting the pressure test run. I also will look for a way to get codes pulled. I just bought the truck about 1 1/2 months ago so there may be other codes there. One thing I noticed when putting the frame rail filter in was that the filter did not want to stay in the cap very well with the retention clips. Is is possible it is not secured enough?

[SCUFFY828]

Originally Posted by sthompson134

Scuffy828,

Thanks for all the help. I will check into getting the pressure test run. I also will look for a way to get codes pulled. I just bought the truck about 1 1/2 months ago so there may be other codes there. One thing I noticed when putting the frame rail filter in was that the filter did not want to stay in the cap very well with the retention clips. Is is possible it is not secured enough?

you might want to get ford filter and try it , it should be tight