new turbo -- no boost

[sae]

I blow up my old turbo. Even had about 1 gal of oil go through it to get truck to next place to pull off road.

I replce the old turbo (it was an '03) with an '06. My truck is an 06 F350.

I do get about 4 psi of boost when it is cold but after it is fully warmed up the boost gauge does not move off of '0'. I know I do not have boost also. Lack of power. It does not smoke now. (it smoked a lot at first from oil in exhaust).

There is no codes.

Where do I start????

[Alak]

Check your piping? If you blew up your old turbo, its possible debris has made its way into the intercooler as well. Its common practice on the big trucks that when the turbo goes, the intercooler must also be replaced (or at least reverse flushed and pressure tested).

[sae]

The pipe to intercooler was clean so I do not think there is a problem with intercooler. All if not all of the problem with old turbo was on exhaust side.

[SharkDiver]

Was the new turbo you put on clean? It may have sticking vanes from sitting for a long time and rusting but if its not smoking I think I would lean towards a boost leak somewhere.

[99powerstroke62]

Check your up-pipes.

[PGreenSVT]

VGT solinoid could be a possibility. The vanes could be sticking or your up pipes are leaking as stated above.

[sae]

Up Pipes??? Tlaking about exhaust correct? If so there is no leak there.

On the vgv solinoid I had to swap it with turbo since new one did not come with one. So that could be the problem. Also is the 03' and 06' the same solinoid?

[Evil Eye]

Yes, same solenoid on both turbos. If you have a diagnostic computer (like AutoEnginuity), you would be able to command the solenoid open and close and hear the exhaust note change.

[astroinhouston]

I had a similar problem when i cleaned my turbo. When i put things back together i didnt seat the intake correctly at the front of the truck and it wasnt delivering air to the turbo. Start your truck, pop the hood, and throttle the engine. If their is a leak you will be able to hear it.

[Country Mav]

My VGT solenoid plug was bad. I would get boost sometimes, but mostly not at all. Finally bumped it and the turbo kicked in. Replaced the plug and it's never missed a lick!