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I have a 2019 EX-L AWD. I get like a grinding noise when the AC is turned on, right after a cold start. This doesn't happen when the engine is warm/hot. I have a video that shows this: Youtube. The noise can be heard around the 5/6 second mark. As the vehicle is still under warranty, took it to the dealer, but they were not able to replicate it. Any thoughts on what may be causing this?
 

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2008 Piot SE FWD, 2015 Pilot LX 4WD. 2005 GSX-R1000
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Did you show them the video? Just trying to help.
 
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Did you show them the video? Just trying to help.
As a tech that video really didn't help me. I wish I could be there in person to diagnose it.
OP, when the noise is made, have the fan full, is there lots of air movement? It almost sounds like the blower motor has trouble starting up.
 
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