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Old 06-06-2018, 11:08 AM   #1
Drives: 2010 Yaris
Join Date: Apr 2016
Location: Portsmouth va
Posts: 4
Weird noise at idle with ac on

So I know these cars can have a motor tick to them but my car has a nasty tick noise and itís coming from something belt driven I think cause it pronounced near that side of the car . It seems like it only happens when the car is warm and the ac is on. I have used a screw driver to listen to each component and canít really tell. The ac pulley has the slightest movement I mean itís very little and with the screw driver on it it sounds fine the water pump maybe the culprit but itís hard to say I think itís the water pump or the alternator but why would that be the case if it only happens with the ac on. By the way this is all at idle. I did notice that when I turn my ac on the engine fan immediately turns on but noise is near the belts . Any ideas would be appreciated. Thanks
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