What is your question?
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What is your question?
Could this be pulley, belt or bad replacement alternator, makes same noise if ac is on or off?
How long has your 2007 Toyota Yaris had this problem?
Alternator replaced 3/16/2019, noise started then
1 Reply
Hard to really say until you isolate it. Could be the replacement part. Could be a tensioner or idler pulley, or really any of the other ones. Remove the belt, spin each pulley and see if you can isolate it.
Thanks DaveJM, there was a video of a guy doing this on youtube even removing the engine mount bolts and ac connections to raise the motor for more accessibility, but that would be beyond my capabilities. He found a pulley that needed bearings lubricated, we'll take it back to dealership that replaced alternator to see if they can resolve the problem. Thanks again for your quick response.