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Hey guys I’m new on this forum. I’ve never owned a GMC or a truck before and this is a first for me so it’s definitely a learning experience for sure so any help would be much appreciated. It’s a 2014 GMC Sierra 5.3. I recently had the AC condenser line break on it causing it to leak transmission oil everywhere in the bottom half of the engine bay. Got it taken care of. When I received it from the dealer it was still covered in oil residue. I was pretty mad about that but I cleaned it up pretty well with engine degreaser. Then I checked back a couple of days later and there was oil still after I had cleaned it so I took it back to the dealer and they pressure washed it (or so they told me) and now it’s all gone. Anyhow afterwords now everytime I start the truck up and it starts getting warmed up quite a bit of white smoke comes out of the exhaust. It’s pretty common for cars and trucks to do this I know but the smoke smells like burning oil. The truck isn’t leaking oil or coolant on the floor. After I drive and warm up it goes away. But once I park the truck anywhere and start it up again it smokes, I drive a little and it keeps smoking then stops. If I’m stuck in traffic idiling it smokes as well. Any help would be useful please. Could it be a serious problem or still left over old oil residue or just me being paranoid?