Adisabeba33

Hello everyone! I have 2015 Chevy Suburban. 5.3L engine. Recently I faced with annoying thing while driving my truck. When the engine switches from V4 to V8 mode it makes some creaking, squeaking, some sort of short noise which looks like two pieces of metal have been hit of each other. It became very annoying because the engines switches the mode very offen in this year models. Every time the engine mode switches it makes that noise. It already made me feel like I drive horse coach but not brand new 2015 Chevy suburban. I just came to dealership and explained them everything. The guy already told me that it is normal that engine makes a noise. I told him that this is not the noise which is normal for usual engine working condition. I believe that vehicle value of which is about 65000$ shouldn't be working like that. If somebody have ever faced similar issue with their trucks please let me know what do you know about it. Relying only on dealership's mechanical knowledge is not very good experience. Any help from you will be much appreciated. Thanks