Well here is an update. Technician diagnosed the turbo fault by exercising the turbo controller, via simulated digital input, and the turbo vanes position would not change, 0% to 100% to 0%. The turbo was/is faulty, and the failure is the variable vanes (VGT) are stuck/difficult to move i.e...
Thanks for the pics. I have been thinking that this truck may not have been designed for a city driving. What can be done so that this soot build up us minimized or cleaned up? Additives, driving highway miles, or something else?
I agree that this may be a beginning of an ugly continuing situation, and that is why I am being anal about it. The real question that I have is, what is the root cause of the turbo failure? Is it manufacturing or design or installation defect of the turbo, or is this an induced failure of...
I don't know what processes they used to arrive at the failed turbo yet, I will be talking with their "experienced" technician later today to find out their diagnostics for the conclusion. When I drove it to the shop, there were strange noises coming from under the hood close to the location of...
Last weekend I got the Service Electronic Throttle Light while driving on the freeway at about 65 mph. Took the truck to the dealer, and had the P0234 turbo over-boost code. The next day the Service Manager called and said that they diagnosed a bad turbo and they need to replace it. The truck...