TECHS INSIDE PLEASE!
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Senior User
Joined: Oct 2010
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Hello,
Not a tech here but this sounds familiar to a problem I had in my 05 shortly after buying it. I even took it to the local ford garage because it was still under warranty. The tech couldn't find anything wrong but admitted that it just wasn't running strong.
My truck had very similar symptoms very quiet, no codes, ran smooth but weak, but mine would not build above 19 lbs. boost. It ended up being the underhood FICM fuze (#12 I believe). I stumbled across it after driving it that way for months and was shocked at the difference it made. I have no idea how it could blow and not throw a code. It hasn't blown since and I have no idea why it blew to begin with.
Not a tech here but this sounds familiar to a problem I had in my 05 shortly after buying it. I even took it to the local ford garage because it was still under warranty. The tech couldn't find anything wrong but admitted that it just wasn't running strong.
My truck had very similar symptoms very quiet, no codes, ran smooth but weak, but mine would not build above 19 lbs. boost. It ended up being the underhood FICM fuze (#12 I believe). I stumbled across it after driving it that way for months and was shocked at the difference it made. I have no idea how it could blow and not throw a code. It hasn't blown since and I have no idea why it blew to begin with.
Elder User
Joined: Feb 2009
Posts: 649
Likes: 2
From: PA
Yup thats what I was saying, mine was blown and still ran, don't know why, don't know how, but ran it for months like that until I finally figured it out. I can pull the thing now and it will go right back to how it was running then. It was worth a shot.
EDIT: Just went out and checked again, and it is underhood fuze 20 not 12. Started my truck and pulled underhood fuze 20 and it runs.
EDIT: Just went out and checked again, and it is underhood fuze 20 not 12. Started my truck and pulled underhood fuze 20 and it runs.
Thread Starter
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Senior User
Joined: Oct 2010
Posts: 149
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Yup thats what I was saying, mine was blown and still ran, don't know why, don't know how, but ran it for months like that until I finally figured it out. I can pull the thing now and it will go right back to how it was running then. It was worth a shot.
EDIT: Just went out and checked again, and it is underhood fuze 20 not 12. Started my truck and pulled underhood fuze 20 and it runs.
EDIT: Just went out and checked again, and it is underhood fuze 20 not 12. Started my truck and pulled underhood fuze 20 and it runs.
Elder User
Joined: Feb 2009
Posts: 649
Likes: 2
From: PA
I was doing some research and realized that your 04 probably has a completely different underhood fuse panel than my 05. Mine has quite a few mini fuses and relays while yours most likely has 4 relays and 2 mini fuses. That said, me giving you fuse number is a lost cause.
When I pull the FICM fuse #20 in my truck it seems much quieter (less injector rap), it still runs smooth but lacks power, and the turbo will not boost over 19PSI. I guess it would be what people call limp mode.
I apologize if I caused any confusion for you, just trying to help out.
When I pull the FICM fuse #20 in my truck it seems much quieter (less injector rap), it still runs smooth but lacks power, and the turbo will not boost over 19PSI. I guess it would be what people call limp mode.
I apologize if I caused any confusion for you, just trying to help out.
Thread Starter
|
Senior User
Joined: Oct 2010
Posts: 149
Likes: 0
I was doing some research and realized that your 04 probably has a completely different underhood fuse panel than my 05. Mine has quite a few mini fuses and relays while yours most likely has 4 relays and 2 mini fuses. That said, me giving you fuse number is a lost cause.
When I pull the FICM fuse #20 in my truck it seems much quieter (less injector rap), it still runs smooth but lacks power, and the turbo will not boost over 19PSI. I guess it would be what people call limp mode.
I apologize if I caused any confusion for you, just trying to help out.
When I pull the FICM fuse #20 in my truck it seems much quieter (less injector rap), it still runs smooth but lacks power, and the turbo will not boost over 19PSI. I guess it would be what people call limp mode.
I apologize if I caused any confusion for you, just trying to help out.
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