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I know this is really late but it bothers me when people don't dry how they fixed their trucks. So my problem was the fuel pump was failing on me. It was ther only thing I couldn't test. Now I have a new airdog 2 4g and a tamerx fuel pressure gauge. Sent from my SM-N960U using Tapatalk

I bought new batteries when I got the truck. champion agm. And I got over 14 when the truck was running. Bummed. I hoping and thinking it's something stupid. Another weird thing is that I lose data while logging with ae . Anything is still up but the numbers read nil. But the trick still...

The egr code might be a result of me tugging on the wires with what looks like a bad pigtail install . the icp code is from me unplugging it to see if it would cure the problem . Can a shorting egr valve wire cause this type of running issue? Sent from my SM-N960U using Tapatalk

Also the ficm code is from having a58 volt ficm . At least I read that . Sent from my SM-N960U using Tapatalk

It has to be electrical right? Or the pcm? When I got the truck it didn't have any codes except the u codes and the only thing I changed was the ficm because of the main power dropping when the truck started , but the truck ran good. I thought it might be the logic side of the ficm so I used...

So when I do a power balance test all injectors drop while the sound is happening then they go back to normal. Also I'm getting tons of odd codes maybe from tugging on the harness trying to find somewhere chafing. Sent from my SM-N960U using Tapatalk

Here is a video that you can hear the sound better. Do you think that the power side of the ficm can do this. https://youtu.be/gU9cMrhYYgA Sent from my SM-N960U using Tapatalk

I tried nothing the compressor and no change. I appreciate the help though. Sent from my SM-N960U using Tapatalk

https://youtu.be/LPM8JMTiEjw Sent from my SM-N960U using Tapatalk

I have a new to me late 04 f250 cc and the batteries were bad when I got the truck and replaced the ficm because it was dropping voltage until the truck warmed up . Well after the new ficm the truck ran great and a few days to a week later it developed a strange buzzing/ clatter noise while...