Whining noise on 2004 Volvo S80

Hearing a constant and loud whining noise that coincides with RPM. Has progressively gotten louder over several months. Any suggestions?

Asked by for the 2004 Volvo S80
2 answers 1 comment
Get this checked immediately, it could be the timing belt tensioner and if that was to break, you're looking at thousands of dollars in repairs to the engine. How many miles do you have on the vehicle?
Did you have the timing belt replaced at the 105,000 mile service?
115,000 miles