6.5 Turbo no boost

[Pstyckiewicz]

Ok I got back at it today. Took my driver side flexible exhaust pipe off going to turbo. I then took the intake pipe off. I stuck a shop vac on the exhaust side and blew air in the turbo. I used my bore scope and confirmed the turbine was spinning. I couldn’t get my hand in there to feel the play.
In addition I found that there is oil coming from the cdr valve and going into the turbo/ intake. Any idea if it is supposed to do that? It’s a newer cdr valve. There is little to no blow by when taking to oil cap off. (If that matters).
Used some exhaust gasket maker stuff and slapped it back together. Still not showing boost!?

 

[Mogman]

The CDR relieves the pressure built up in the crank case so yes there would be some oil/oil vapor passed through the valve.
There may not be any blow-by at idle but you can be assured there is some under load.
As long as it is not using/burning oil it is a non issue.
Curious where did you tap off for the boost gauge?

 

[TNDRIVER]

Ok I got back at it today. Took my driver side flexible exhaust pipe off going to turbo. I then took the intake pipe off. I stuck a shop vac on the exhaust side and blew air in the turbo. I used my bore scope and confirmed the turbine was spinning. I couldn’t get my hand in there to feel the play.
In addition I found that there is oil coming from the cdr valve and going into the turbo/ intake. Any idea if it is supposed to do that? It’s a newer cdr valve. There is little to no blow by when taking to oil cap off. (If that matters).
Used some exhaust gasket maker stuff and slapped it back together. Still not showing boost!?

If the turbo is spinning freely my next stop would be to inspect and clean the catalytic converter. And yea, where did you tap into the manifold at? At least two inquiring minds would like to know......

 

[Pstyckiewicz]

I tapped into it here.

 

[Pstyckiewicz]

Is there any straight pipes sold out there to eliminate the catalytic converter? Or any easy way that people have removed them?

 

[Mogman]

I think many just remove the cat and test drive without it.
Generally speaking a by-pass pipe is illegal.

 

[TOBASH]

Is there any straight pipes sold out there to eliminate the catalytic converter? Or any easy way that people have removed them?

It is not a catalytic converter. It is a soot trap.

Look up CDR cleaning on YouTube.

 

[TOBASH]

FYI

Read my Project Joshua thread. A dirty [EDIT-DPF] is a clear culprit with loss of power. Clean it and things really change

 

[Pstyckiewicz]

Next will be to clean the cat out. And clean cdr valve.

 

[TOBASH]

Next will be to clean the cat out. And clean cdr valve.

It’s NOT a Cat. It’s a DPF. Diesel Particulate Filter.

 

[Pstyckiewicz]

let’s just say the diesel particles will be flowing a lot easier.haha

 

[Retiredwarhorses]

It’s NOT a Cat. It’s a DPF. Diesel Particulate Filter.

its a Catalytic Converter

 

[Coug]

Any vehicle with a particulate filter needs some method to do regeneration burns, which pretty much requires computer controls.
These trucks don't have computer controls for their engines/emissions.