Buddies 6.0 Problems

[Boreen]

Alright, This is NOT my truck, it is my buddies truck so i do not have all the information on his truck.

Anyhow, His truck runs pretty bad. It surges at higher RPM's like its cutting in and out. At idle it surges, and runs quite rought, like enough to shake the truck. As for starting it was starting quite hard, like would have to cycle the glow plugs a couple times. Once its started it smokes alot of blue, white, and black smoke. Also he has to let off the throttle a little bit for the tranny to shift gears (Auto), could his trans also be screwing up?
What could be wrong with his truck?

Also his turbo barks quite easily, Like he can rev it up to 3000 RPM in park and let off slowly and it will bark. Even driving around town normally the turbo will bark if he gives it a little throttle.

He had just got the computer flashed the other day and its still the same problem.
Also this thing has very little power compared to before. Before it would be able to do a brake stand and now it has alot of trouble doing one.

The only mod to his truck currently is 4" Turbo back straight pipe exhaust. He had a Bully Dog Triple Dog in it for a while but took it out before the computer got flashed.

One thing is he did drive the truck quite hard and doesnt have an EGT guage. Like, he would do 110mph to 120mph while reving 3500RPM-ish.

Could he have melted something down? Could a piston be cracked, or melted? Or is his turbo just comepletely done almost?

Anything else he can do or needs to know about this truck?

Truck is a 2005 F-350 CC/SB 6.0,

[mudrunninpig]

has he pulled any codes off the truck?

[Boreen]

He had a couple codes but he kept erasing them before i could see them. Something about Cylinder 2 Balance, EGR Thottle position circuit, EGR insufficent flow, and a couple other codes that i cant remember.

If he gets anymore codes since he flashed the ECM ill post them up.

[VeeDubTDI]

Well, I'd start by replacing the EGR valve, because it's probably plugged up with soot and goopy goodness. See if that makes an improvement and then check to see if the Cylinder #2 balance code comes back. If it does, you probably need an injector on that cylinder.

[Boreen]

He did clean the EGR Valve not to long ago, After he cleaned it, it started surging. Ever since than its been getting worse. It was pretty plugged up when he pulled it but it looked like new when he put it back in.

[fordmasterdieseltech]

you need to get a scan tool on it and monitor live PID data while this thing is acting up. sounds like you have a failed egr valve and possible turbo vanes sticking.

[6.0L_stroker]

Since it's surging and not shifting properly I say take out the tuner, and cleaning the egr vavle is always a temporary fix, it always seems to need to be cleaned again every 3 to 4 weeks it goes bad again, and you need to electronically check the the injectors, and change the fuel filters, go with cheap things first and progressively get more if it doesn't fix it, need to check the boots too, and a thing I would do is check for blow by, check ur crank case vent for excessive flow and open the oil fill and see if u got a lot of vapor coming out of it... If there is a lot you probably have a bad seal, or cracked piston, blue smoke isn't good, but could be because of the egr, white means it doesn't have enough heat to burn the fuel, white is okay as long as it isn't going it when it's warm, black is fine as long as it's not at idle if it is then it's most likely a bad injector.

[Boreen]

Tuner is completely taken out. He said its not going back in. It has new fuel filters already. What does he need to electronicly check the injector flow rates? If it turns out to be a cracked piston, how much roughly does a rebuild kit cost, and where can he get one from?
Also, what about just unplugging the EGR Valve, what will this do? Could this bypass the EGR Valve temperary?

[Boreen]

Bump.....Anybody???

[kingranch89]

just go ahead and delete the EGR and then go from there