My dad has a problem with his 2011 Mazda BT-50. Every time the turbo kicks in it makes a squeaking noise. We adjusted the tensioner, but it kept going. I don't know what might be wrong. Can you help?
Without being able to view it and hear it firsthand it's hard to suggest what might be wrong. It could be a bearing in the turbo, but that's only an educated guess. I would have a mechanic check it.