Need help "turbo fart" issue!!!!

[Dlp250]

Well I had an issue with the heater and replaced the thermostat and al hell broke lose!!!

Right after I replaced the thermostat I started to lose alot of power and discovered that there was a hole in the hose on turbo on the high pressure side. 4 inch hose = $90, took five seconds to replace but now I have an issue with the turbo farting if I WOT it. The truck is fine off the line but will start to blow black smoke(which it never has before) and then at around 30 mph into the WOT it will start to stutter and lose power while turbo farting the whole time.

I had to drive it for a while with the hole in the hose could this be a reprogramming issue?

2004 ford f250 with 120k

[dhanna6powerstroke]

Did you knock the rubber hose loose that connects to the top of the intake on the passenger side? It runs from the MAP sensor to a nipple sticking out of intake.

[Dlp250]

I took a look at the MAP sensor and there was some wires to it but no line that would have a nipple. Maybe I am looking at the wrong thing but it is connected to the intake manifold at the front of the engine bay and under the radiator shroud kind-of.

[dhanna6powerstroke]

I'm talking about the intake manifold and not the air intake. The hose I'm talking about is just behind where the intercooler tube is that you fixed. It should run from there up to a sensor that is mounted on the heater box with a "triangle" shaped mounting bracket.

[Dlp250]

Sorry, now I know what you were talking about, I didnt think that was the MAP. You were correct it would have been in the area I was working in to perhaps dislodge it. Unfortunately, I checked and it was nice and tight with no leaks.

Keep the diagnostics coming, I am despearte I am moving my family on Friday and was planning on hauling a trailer to make that move. So ANY suggestions would be great.

Thanks again dhanna for your help so far.

Dusty

[dhanna6powerstroke]

You have any way to monitor sensors? Check to make sure Mass Air Flow sensor is connected. It is kn between the air intake and intake side of turbo. Should be a rectangle piece and usually the wiring harness is clipped to oil dip stick.

[Dlp250]

I will do that fist thing tomorrow, I have been searching the forum and think I have found the issue, the turbo vanes are stuck. Is there a way to test this?

Ok, here is my reasoning.........the boot (rubber hose slight bend and about 4 inches long) off the turbo supplying air to the intercooler was cracked and I was losing a ton of boost. I ended up driving this way for about two days while looking for someone who had the part which is $90 at my local stealership. With this being said I believe the vanes were being pushed to their limit as to were they normally travel in the unison ring, this might cause them to reach an area on the turbo that would cause them to bind and would cause all the issues I have been having, ie. good at low end but starts to fart and smoke the higher the RPM's. Does this logic seem viable to anyone else?

Is there anyway to get them to move again, I dont think it would happen again if I could just get it to move this one time.

How long am I looking at to take the turbo off and give it a good cleaning? Yes, I know this can vary alot but what has been your (anyones) experience?

[dhanna6powerstroke]

It's not a bad job to pull turbo. I can have one out and on the ground in 20 minutes. Does your truck still have the EGR valve?

[sinner6.0L]

sounds like either the turbo is stuck or the egr valve is weak internally. Both will do the same thing, cause the valve to blow back open when boost pressure becomes too high.

[nordstrom]

Originally Posted by sinner6.0L

sounds like either the turbo is stuck or the egr valve is weak internally. Both will do the same thing, cause the valve to blow back open when boost pressure becomes too high.

Shouldnt or wouldnt those things throw a code. I am wondering if that is what my problem is too