So, I have a question for anyone willing to play the guessing game. Y’all know more about diesels then I do so I figured I would ask and see if any of y’all have any ideas.
The issues with this new (to me) 2011 GMC 2500 Denali truck is that before I bought it, the service department had an open ticket on the truck that I was not made aware of. Since a good family friend was the salesperson, she was trying to find the 2nd set of keys and found them over in the service department two days after I bought the truck. At that time she found out there was a open ticket for the truck dying. The service department said they did something but wasn’t sure if it fixed it and it didn’t.
So, the day I bought the truck I drove it around and nothing seemed odd or not working and loved how it only had 70k miles on it. Then later that day as we were waiting on all the paperwork and everything that goes with buying a truck it sat and it was a very cold winter day. As they were working on getting everything ready my salesperson took me out to start it up and do the OnStar stuff in the truck. While sitting in the truck that day waiting for the OnStar person to send a signal to the truck, the truck just shut off and on the DIC said something like service stabilitrak or something similar. At first of course I thought well did the OnStar lady send the wrong signal and kill the truck, just a thought.
So, two days later when my salesperson found the keys and found out that there was an open ticket, she got ahold of me right away. She wanted me to take the truck out and drive it around to find out if in fact the truck was ok. So I jumped in the truck and turned the key and waited for the pig tail glow plug light to go out, which I thought took longer than it should being that it was kept in the garage. I started it up and no issue and I pulled out of the garage. Once pulled out of the drive and got to a stop sign, I sat there for a while as I thought this would be a good time to get my seat all positioned the way I want it. As I was sitting there it started to idle like it had a big cam in it like my Camaro does. While sitting there having the whole truck shake it almost died but someone pulled up behind me to I had to move. Almost felt like it was missing or something, but I am not very familiar with the diesel engine.
I then called my salesperson right away and told her it is defiantly not running right, as I had a 2013 and it never once did anything like that. So my salesperson said bring it in if I thought it could make it so away I went to the dealership. On the 20 min drive to the dealership it started smelling odd like maybe burning to much diesel or something, again not familiar with diesel but I know my 2013 never smelled like that. I like to drive with the exhaust brake on to just help with slowing down without using the brakes and try to save the wear and tear on them. So, since I had the exhaust brake enabled when I got into the town that the dealership is at, all the sudden the DIC said exhaust brake disabled. Again, on my 2013 I never had anything like that happen.
So I dropped the truck off and got a loaner truck in the mean time and I have no idea what could be causing all this weird shit to happen. If anyone of you that know much more about diesel engines and the LML have ANY idea what could be wrong I would love to hear, even though I know it is hard to know for sure.