Cummins ISX black smoke

I had an 2006 with a 565 isx, are you getting high pyro temps and loosing power? I was told by Cummins an egr will last about 2 yrs. but like I said that was an 06 with the egr on the pass side of the engine. Even if you have it unplugged it can work its way open, happened to me, those egrs can get expensive, egt sensor may also be bad. hope this helps

 

Koolk, I'm willing to bet it's an EGR valve

 

You could try PDI, they may have something like that

 

Well , mines an 06 , so I don't have the DPF you have.
However , if your exhaust manifold is the same as mine , and the EGR is the same , what you can do ,I've been told , is this: the exhaust manifold is a 3 piece job. Go to a junkyard , get the rear section , and take your front section off , put the rear one in its place . No EGR leaks into your intake.

 

Good luck to you, I hope it works out well

 

Mines an 06. Though KW keeps saying its an 05. Guess the engine might be.
When we replaced the turbo , I took a look at the EGR valve. It was closed . The way it appears to be set up , it has to be forced open , as the exhaust gases would normally be trying to force it closed. I don't know if you could get Enough pressure , from a back flow from the intake side , to force it open , against the pressure of the exhaust.
Anyone have an idea on that ?
Already had the EGR delete done , and its unplugged as well.
Any comment would be welcome .