2010 flex awd shuttering
 

I’m new to this forum I purchased a 2010 flex limited with the eco boost and awd. I am experiencing a shutter during acceleration. I took it to a local dealership and they put it on the computer but didn’t find any codes. The suggested I need to replace the tcm. Has anyone else had this issue. I don’t want to spend 500 on a module then have to replace transmission