bourbonBC

Yeah, that is what we decided. I am keeping all service records and noting all the conversations I had with them during this process. What they said was wrong, what they said was ok, what they said did or didnt happen and who told me what. That way if something does happen I have all of it documented on who told me what on which day.

Sure enough. Dealer called back and said no issues found. Said he put it next to a truck with 3 miles on it and it sounded exactly the same. At a point now where I dont really know what to do. It has 6 year 100k powertrain so if something did happen it would likely show itself sooner rather than later. The other thing is to take the "we are not comfortable with this big of issue two weeks into owning the truck" and try to get them to take the truck back. This sucks.

Follow up on this. I took it to my mechanic and he said I should take it back to the dealer because the engine does not sound right. Not the DI, but he said it has a whine to it. They took off all belts and the noise is coming from inside the engine. Awesome. I dropped it off at the dealer last night and they are supposed to look at it today. When they replaced the radiator it was at another shop and they assured me there was no engine damage from the oil cooler going out. SOMETHING had to cause it to go out. And now the engine whine. Have had the truck for three weeks yesterday. Why do I have this pit in my stomach feeling dealer is going to call me today and say they can't find anything wrong with it. My mechanic said that something had to be causing the noise, it is in the engine, and they should either fix it, replace the engine, or work with me on getting a different truck. We will see, but what has already been a giant pain in the rear, I have a feeling is going to get a lot worse.

I am sure it is not that easy to walk in and say "I want to pick out another one", but a pretty big part fail two weeks after I bought it and I have yet to hear what is causing the sound while shifting gears. It does not happen often but it has happened and I would say I have a pretty good case for them to take the truck back.

You were correct. Dealer called and said it was the oil cooler. They flushed the engine, replaced the radiator and the part that failed. He said that the coolant did NOT mix with the oil, meaning that the oil only mixed with coolant. So I take that as sign of good news. He said it did not impact the engine. Said they would finish it up today and then drive it tomorrow to see if they can hear the sound I referenced earlier. I think that after I get the truck back I am going to call my mechanic and pay him to go over the truck to get a different opinion on the over all shape of the vehicle. I am not saying I do not trust GM, but I trust this guy.

Hello, New to the forum so if I screw up, please let me know and I will try and learn quick. Recently purchased a 14 CPO LTZ with 47,000. 5.3 and 4x4. Today marks two weeks of purchase. 6 days after buying it I noticed a sound when shifting gears at speed. Sounded very similar to a slip yoke. The kind of "chunk". Some louder some softer. Has done it 3 or 4 times since I bought it. Yesterday I ran some errands and came home an noticed a stain on the garage floor. Looked like someone spilled a caramel coffee or something except this was no coffee, it was clearly coming from the truck. I looked and could see it dripping from the bottom. Traced it back to the very bottom of the coolant reservoir. After researching, I think the most likely culprit is oil getting into the coolant as it was barely registering on the dip stick. Called dealer first thing this morning and they towed it to the closest dealer. First thing is, thank God it is CPO. But this seams like a pretty big issue for a truck initially sold in August 14. Carfax was clean and looked like it was well maintained service wise. Still waiting to hear back from dealer, but I am very weary going forward. If this truck is having this major of issues this early, then I am half tempted to tell the dealer that I am not comfortable with these issues after only two weeks. I have looked and looked and cannot seem to find many issues like this in this new of a truck. I see it in old, but not the newer. Anybody heard of this before? Thanks for the input!