Driving my 07 yukon as I accelerate it kind of whines ?help!

Hey Chris, we can certainly help. Your noise has a lot of potential causes. The best way to know for sure is to get it into the shop and allow our experienced technicians to analyze it. Let us know when you can come. 512-444-7716

Could be noise from transmission, check the fluid level. Could be a belt pulley or tensioner. Could be alternator diode is going.