I have been having diesel exhaust coming into my cab of my 2011 Duramax because of a leaking downpipe. This problem started after a check engine light came on and the dealer replaced the indirect injector. The truck has been in the shop many, many times with the service department just shrugging their shoulders and not investigating the issue. This is a serious problem that GM knows they have. Fuel mileage has dropped considerably during this entire process. I also have had to present the dealership with videos, pictures and information from the internet about the problem.
My contact info is 318-376-9663
My contact info is 318-376-9663
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