LLY: No Power Black Smoke at Random

[Jnormand]

Duramax lly 2004.5

Hi Guy’s

My duramax , each Time i drive my truck , it is more and more hard to start and after 10-15 min driving on mountain ,when i fully depressed on the accelerator pédal , There is no power, There is a lot of black smoke.


The turbo stop Working after 10-15 min
The truck has no boost

Transmission contrôl modul! TCM

 

[sergiosam042]

Having the same problem on and off for a while my egr is turned off with efi live but I’ve never deleted my egr


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[2004LB7]

could be back pressure opening up the EGR

 

[08lmm72mm]

Probably a hole in the bottom of the egr valve.