I recently had engine failure on my 03 the engine is locked up. DC voided the warranty because of a blow off valve,which by the way never worked. I found large shards of metal in the intake where the air goes into the engine. There was no turbo damage or intercooler damage . DC could not tell me what caused this,they just went ahead and voided warranty. There was raw fuel coming out of the tailpipe and knocking real bad when the failure occured. I had the injectors tested and they were ok , but now i have a truck i cant use ,a large monthly payment ,and lack the know how to fix it,and the money. Can anyone give me advise or info to better my situation. Thanks cummins killer