My mechanic and Mazda dealership can’t figure out why cx7 Boggs down when it hits 4000 rpms. New turbo and new timing assembly……..please help

 

I don’t have any idea about your specific problem, but I found myself in a similar situation two weeks ago. I had a 2007 CX7 with 190K miles that started leaking oil badly. It was going to cost $1,000 to fix that, plus a couple of other things had recently gone wrong and I was fearing a money pit situation moving forward. I loved the car but I snaptube vidmate had to let it go. Traded it in for a 2021 Mazda6.