Had a issue with my diesel still under warranty was pouring white smoke from under the hood and into the cab during regen. Dropped it off on a Friday and they said they couldn’t duplicate the problem. As stated it’s only during regen. Asked if they’d just check the whole emissions system for leaks. They said Monday they did with nothing found. Got it home and decided to look for myself and found a gasket had blown out of the exhaust causing the problem. Three days it was there and they didn’t find it. Took it back on Tuesday and the tech refused to come talk to me because he was busy after missing the problem. So I asked to wait for it as I’d been long enough without my truck, being under warranty I expected it to be fixed. The tech was clearly angry with the service advisor on two occasions, especially when told I wanted my truck fixed that day. So they looked and blamed an aftermarket nut on the flange for the problem and refused to warranty it after wasting hours of my time not properly diagnosing my vehicle. (You could see a giant soot stain under the truck as soon as you looked) I will never step foot in this dealer or the service department again. I’ll gladly fix my unwarranted exhaust gasket myself and save the money. The truck was clearly not looked at for leaks. It was so obvious. I understand if an aftermarket nut caused this. But after wasting hours of my time and going days without my truck to not even look at the exhaust system? Then try to charge me for your time? That’s terrible. Tammie was polite at least. However Pat was rude and inattentive and failed to diagnose my truck after saying the system had been looked at. They tried to get the truck to repeat the problem and didn’t bother actually looking for the source.