2005 F-150 5.4L won't read OBD

Cherokeekid88

Cherokeekid88

Well-Known Member
Joined
Jun 30, 2007
Location
High Point, NC
So in laws have a 2005 F-150 5.4L that they can't get to pass inspection due to "cycle not ready" coming up when they go to get it inspected. They went to two different places and both said that it just needed to be driven....that was about 8 months ago.
So I recently started looking into and got it a fresh new battery today let it run a while and drove it around and took it up to autozone to get them to read it and it came out the same "cycle not ready"
The truck has been driven over 500 miles and still has not gathered enough info to be read when being inspected....
I'd really like to get this figured out for them because I know they miss the truck. Does anyone know anyone that is a ford tech that could possibly look at it or have any advice as to how to get it to read so they can get it inspected?
I'm just at my wits end
 
4.8 and 5.4 have a problem with a bad fuel module not allowing the emissions scan to complete

Usually won't throw any codes or lights, if the lights not ready are for the cat and o2 I'd bet that's the problem
 
How do I find that info out?
I know that there is a drive cycle that you have to follow in order to get it to read properly...but geez. Place I usually take my jeep to has an expedition with the same problem and they can't get it to read either.
 
Cory said:
4.8 and 5.4 have a problem with a bad fuel module not allowing the emissions scan to complete

Usually won't throw any codes or lights, if the lights not ready are for the cat and o2 I'd bet that's the problem
Click to expand...
Now, I know that the Fuel pump drive module needs to be replaced...they started noticing that if they took the Truck through a car wash...it would cut off shortly afterwards or if they shut it off, it would turn back on until it was dry. I read that the module itself located on the towing crossbar (?) has a thin backing that rusts and water seeps in and causes it to short. By replacing that, should it help it read it?
 
Most professional tools offer the ability to view what's ran and what hasn't and in some cases why it hasnt ran. Typically we would then use service data to determine what's required for the monitor to run and through the process of deduction determine the item that's preventing it's completion.
 
Cory said:
That's how I fixed it on a few , o added rubber washers between so rust would not spread onto module as easy
Click to expand...
Funny enough, was just talking to a guy that said he had a shop put his truck on a dyno and do the drive cycles multiple times and still nothing....took it to the ford dealership and they told him that his fuel Pump Driver Module was no good, but won't throw a code when its bad...he replaced that and it pass inspection
 
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