Duramax Emissions issue?
Had to take my 2014 2500HD in today, engine light.. Onstar said emissions but not critical IE you can drive it. Dealer now says DEF tank issue and a sensor. $900 for the sensor, it is out of warranty,...
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I have a 15 Duramax dually 3500 with 48K miles. The engine light came on last week. Took it to the dealer and the DEF tank sensor was bad. Replacing under warranty. The Service dude said it was a nation wide recall for the same thing. Call GM and appeal the charge.
