Yeah the one other 60 series A/C system I have heard sounded quiet too. Don't know why this sounds so loud. I guess I am not understanding how a denso reman'ed could be potentially going out so quick (if thats indeed the case with mine), but won't go against @OSS's input. But who knows. Run A/C a lot here in Texas (Texas heat: my penance for a rust free truck) but doesn't seem like it should be going out in 3 years time. A/C works so guess I will just deal with it. Thanks for replies.Mine just sounds like the blower fan. Other than the 25% drop in HP I'd never know mine was even on
Edit: I am going to check on the idler pulley. Most likely replace to rule it out.