I searched for this and only found posts refering to older models. I have an 05 Taco DC V6 w/ 6speed manual. I have 53,000 mostly highway miles. In the last 1,000 miles or so I have developed a squeal which I'm pretty sure is not the belts. It doesn't do it when it idles, but it gets progressively louder as the RPM's increase. And it's not always constant, it doesn't necessarily squeal when it's warm or cold. It's actually kind of random. I've read other posts and it sounds like it may be the idler pulley or something similar. Has anyone else with a late model had a similar experience? If so how'd you fix it?