NEED HELP!!!
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New User
Joined: Feb 2010
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NEED HELP!!!
ok i have a 2004 v8 6.0 diesel. just recently its been having a problem and i have no idea whats wrong with it. when your driving or at a complete stop and you either put your foot to the floor or just take off normal it has nothing. then as you stay in it the turbo spools up around 3000 RPM then its its fine till the next time you slow down and try and take off again. i have no idea what would cause it to do this. Anyone have any ideas??? Thanks
MMNC (SS)(Ret)
Joined: Mar 2004
Posts: 11,594
Likes: 144
From: SE Georgia
That is normal. Ford programmed the turbo vanes to do that. Until the turbo builds boost, mashing the throttle will simply blow black smoke
Once you are rolling the PCM lets more fuel in and you get power
Try rolling into the throttle. Give it a little and progressively do more. Once you are rolling a bit, then peg the throttle.
Once you are rolling the PCM lets more fuel in and you get power
Try rolling into the throttle. Give it a little and progressively do more. Once you are rolling a bit, then peg the throttle.
Posting Guru
Joined: Nov 2010
Posts: 1,406
Likes: 3
From: Altoona, Ia
Sounds like the veins in the turbo aren't working as they should. First make sure the electrical connection on the turbo (2 wires that control the veins) is plugged in and making a good connection. If the connection is good and you can't see any other obvious problem, I would unplug the connection on the turbo and go for a short drive. If it drives the same the turbo is your problem for sure. Either the turbo itself is broken or you have an electrical problem somewhere.
I don't know much, but not making boost till 3000 rpm is wrong. Turbo should have spooled up long before that.
Check the turbo first and let us know what you find out.
I don't know much, but not making boost till 3000 rpm is wrong. Turbo should have spooled up long before that.
Check the turbo first and let us know what you find out.
Posting Guru
Joined: Nov 2010
Posts: 1,406
Likes: 3
From: Altoona, Ia
My guess is the veins in the turbo are sticking, or at minimum not fully opening/closing. Could be as simple as taking the turbo off and cleaning it up. It may needed replaced though, depends if it's damaged or just dirty.
Good luck. Let us know what you find out.
Lead Driver
Joined: Feb 2011
Posts: 8,241
Likes: 155
From: L.A. (Lower Alabama)
Sounds like the turbo to me also. I would scan for codes before starting, just to make sure nothing else is going on. It is possible to have codes stored and no check engine light.
Here is a great thread with pics and good info on turbo cleaning/repair:
https://www.ford-trucks.com/forums/1...0-vgturbo.html
Not to bad of a job if you're handy with a wrench. Hardest part is getting everything lined up when putting the turbo back on the engine.
Good luck!
Here is a great thread with pics and good info on turbo cleaning/repair:
https://www.ford-trucks.com/forums/1...0-vgturbo.html
Not to bad of a job if you're handy with a wrench. Hardest part is getting everything lined up when putting the turbo back on the engine.
Good luck!
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New User
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NEED HELP!!!
ok thanks guys this info has helped out alot. i have no codes showing on my dash. and i unplugged the turbo and it does the same thing as when its plugged in. so i will see about cleaning it now i guess. thanks again for the info!
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Lead Driver
Joined: Feb 2011
Posts: 8,241
Likes: 155
From: L.A. (Lower Alabama)
You won't see the codes on the dash. The will have to be pulled with a code scanner. AutoZone, O'Rileys or whoever is near you will usually check for free. It's best to verify no codes are set before ordering parts or pulling the turbo, just in case something else is going on.
Hotshot
Joined: Apr 2010
Posts: 19,055
Likes: 235
From: Saratoga Springs,UT
You won't see the codes on the dash. The will have to be pulled with a code scanner. AutoZone, O'Rileys or whoever is near you will usually check for free. It's best to verify no codes are set before ordering parts or pulling the turbo, just in case something else is going on.
Start thinking about getting a scangauge then you could check some things out
could be an EBP or MAP sensor isssue to check those sensores and hose/tube
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
Unplugging the turbo and running the truck will create a code where there might not have been one before leading to a misdiagnosis. My advice would be to unhook the batteries for 10 minutes to clear out any codes present and drive the truck again. If you have an electrical problem with the turbo it will recreate the code very quickly. Also make sure that the scanner you use is capable of scanning everything on a 6.0. Most of the autoparts stores will do this for free.
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