turbo surge help
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Elder User
Joined: May 2007
Posts: 752
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From: New Orleans
turbo surge help
hi all i'm a 7.3 guy but my buddy has a 6.0 and has some worries about his turbo. when he gets on it (wot) and then lets off ,he is saying it flutters real bad. he said it just started doing it. i know you can beat this in the 7.3 with a wicked wheel, but is there a cure for the 6.0 and if so what is it? thank you for your help and keep on stroking.
Ryder
Ryder
Senior User
Joined: Nov 2006
Posts: 148
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From: Prosser WA
That sound is a turbo fart. 6.0s don't have a wastegate like the 7.3. Is his intake stock or aftermarket? On stock rigs it will happen occasionally, but I've heard that AM intakes will cause it to happen more often. If it dosen't happen on a consistant basis then I wouldn't worry about it.
Moon
Moon
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
If he has a surge on acceleration then he has other problems. Turbo fart really isn't a normal thing on stock intake. He may have sticking vanes or a defective EBP sensor. He should be able to get it fixed under warranty if it isn't too old or over 100K miles.
Postmaster
Joined: Sep 2005
Posts: 2,725
Likes: 3
From: Florence,SC
with a stock air box, the turbo should never fart, NEVER. the surge could be from the turbo sticking or even the vgt actuator. if it was me working on it, i would try a vgt actuatorfirst because it can be the cause of turbo farting as well as a surge.
Elder User
Joined: Sep 2004
Posts: 821
Likes: 1
From: Nashville
The description "when he gets on it (wot) and then lets off ,he is saying it flutters real bad" sounds like either sticking vanes or EGR valve problems to me. Mine was doing the same thing--EGR valve was stuck. New valve fixed it.
Postmaster
Joined: Jan 2005
Posts: 4,743
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From: Peoria, IL
BowTieHater, what exaclty makes an aftermarket exhaust more likely to turbo fart? I've heard before that it just makes it easier to hear, which I can believe, but this is the first that I've heard that it shouldn't happen at all with a stock air intake.
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Fleet Mechanic
Joined: Nov 2004
Posts: 1,427
Likes: 10
From: Templeton, Massachussetts
Turbo vanes are starting to sieze, we here them all of the time even when there are no performance concerns w/ the truck. Have it diagnosed and most likely needs a VGT and an EGR service-we call them a 6.0L tune up!!
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Postmaster
Joined: Sep 2005
Posts: 2,725
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From: Florence,SC
the exhaust doesnt matter. the intakes/air filters do.
now, all turbos fart because of their design, BUT it is not noticeable UNLESS you have a open air element filter. basically its not really a fart that is heard, it is the disturbance of air in the intake, basically the same noise you hear when you shut one down in a quiet location with a open air filter. the stock intake is also a muffler and thats why the noise is not heard, plus alot of nvh concerns are resolved with the stock intake.
this is why i say that a turbo fart is never normal with a stock airbox because you should not have any issues of the sort. with the open air box, the muffling properties are not there, and thats why it is more noticable but still to a certain degree is acceptable.
now, all turbos fart because of their design, BUT it is not noticeable UNLESS you have a open air element filter. basically its not really a fart that is heard, it is the disturbance of air in the intake, basically the same noise you hear when you shut one down in a quiet location with a open air filter. the stock intake is also a muffler and thats why the noise is not heard, plus alot of nvh concerns are resolved with the stock intake.
this is why i say that a turbo fart is never normal with a stock airbox because you should not have any issues of the sort. with the open air box, the muffling properties are not there, and thats why it is more noticable but still to a certain degree is acceptable.
Senior User
Joined: Feb 2005
Posts: 468
Likes: 9
From: Alabama
I have had a surge issue with my truck (2005 F-450 6.0 6-Speed)
between 1800-2200 rpms. Dealership replaced vgt, cleaned egr, checked injectors, fuel pressure. No improvment.
Any input would be appreciated! 98000 miles. Would like to have issue fixed under warrenty.
between 1800-2200 rpms. Dealership replaced vgt, cleaned egr, checked injectors, fuel pressure. No improvment.
Any input would be appreciated! 98000 miles. Would like to have issue fixed under warrenty.
Elder User
Joined: Sep 2004
Posts: 821
Likes: 1
From: Nashville
ICP = Injection Control Pressure sensor. It monitors hydraulic oil pressure to injectors and sends a feedback signal to the PCM. If the sensor's signal is inaccurate, it'll cause the PCM to compensate with more or less fuel than actually needed, which causes surging, bucking, no start conditions, etc. If the harness connector is loose or otherwise not making good contact, similar effects result. There was even a recall on the harness for certain models (mostly '04s I believe).
It may or may not be the cause of your surging, but it's worth a look IMO. Also the Exhaust Backpressure sensor (EBP).
It may or may not be the cause of your surging, but it's worth a look IMO. Also the Exhaust Backpressure sensor (EBP).
Fleet Mechanic
Joined: Jan 2007
Posts: 1,708
Likes: 7
From: Circle City
I saw this device that helps eliminate the turbo backpressure problem, but they want more than $600 for it. It's called a "turbo guard blow off valve".
heres the link; http://www.elitedieseleng.com/turbo60.htm , scroll down.
it's the red thingy.
heres the link; http://www.elitedieseleng.com/turbo60.htm , scroll down.
it's the red thingy.
Last edited by Benchwrench; Oct 11, 2007 at 12:20 PM. Reason: posted in wrong thread