Need Help She Got Wet
01-18-2017, 08:22 PM
#51
Senior Member
Thread Starter
Went out and started it up it ran fine. Did the relearn and drove around for a good while. At first it seemed like it was under powered but sometimes it was OK. Got back home let it idle for a bit and revving it up then it started to run a little rough then it act again like it was running out of fuel then stalled but as always I'm able to restart it immediately.
no guarantee but it's worth a shot of the battery was off long enough for the computer to lose its memory.
01-18-2017, 08:37 PM
#52
Moderator
Went out and started it up it ran fine. Did the relearn and drove around for a good while. At first it seemed like it was under powered but sometimes it was OK. Got back home let it idle for a bit and revving it up then it started to run a little rough then it act again like it was running out of fuel then stalled but as always I'm able to restart it immediately.
01-19-2017, 06:04 AM
#53
Senior Member
Thread Starter
It was worth a try. My problem is that my closes dealer is 2 hrs away. A local garage here just got some kind of new diagnostic computer so I may drop in today to see what it is. I might drop it off there soon to see what they might say might be wrong with it if they can.
01-19-2017, 03:55 PM
#54
Senior Member
Thread Starter
Got it down to the local service center. There setting up there new system that looks like a big heavy duty tablet. Not sure but I think I heard 10 grand or more for this new setup. Anyways we'll see what they can find. Any bets what it might be?
01-19-2017, 04:00 PM
#55
Moderator
10K! They gonna be looking for ROI my bet is its $200... oh you mean the problem?
The following users liked this post:
BadFish523 (02-16-2017)
02-16-2017, 01:41 PM
#58
Moderator
Thanks for the update this may help someone in the future!
The following users liked this post:
Freddy Crewger (02-16-2017)
02-16-2017, 06:01 PM
#59
02-17-2017, 09:16 AM
#60
05 5.4l 3v s.crew lariat
I think he means fuel pressure sensor
There is only one, it is on the drivers side fuel rail . It has a vacuum lead as well as a electrical connection . It controls the FDMN . The system does not have a return line to the tank . Fuel pump only runs on demand keeping fuel pressure on rail about 40psi . The vacuum helps sensor by letting it know the demand that the engine is reving up .
The fdmn module should be changed anyway to prevent the corrosion problem that will come next .
Why it failed in a mud puddle is puzzling to me . I would have pulled the boots off the spark plugs and dried out the wells after changing FDMN . . Ford removed the schrader valve on the fuel rail making it difficult to check real pressure .
The fdmn module should be changed anyway to prevent the corrosion problem that will come next .
Why it failed in a mud puddle is puzzling to me . I would have pulled the boots off the spark plugs and dried out the wells after changing FDMN . . Ford removed the schrader valve on the fuel rail making it difficult to check real pressure .