Just got my truck back from the shop today after getting a new oil cooler. On my drive home the truck was making a wooshing noise from the turbo. I still had boost according to my Edge Insight, but it did not make as much as it should or as quickly as it should. Tried the VGT relearn and that didn't help. Guessing from what I've read maybe the clamp on the bottom of the turbo isn't on correctly and lined up with the pipe correctly?