ac blower made a bad whistling sound

driving yesterday to work and the blower started making a bad whistling sound seemed to be worse on high....after playing with it for several miles troubleshooting it, i get to work and it stops completely... now no more noises... should i be worried about the blower going out, gonna check the filter today sometime and make sure i didnt suck up a leaf or something... anyone have anything to add to check thanks in advance

 

mine sounds like crickets

 

There is a known issue with the blower mower.

There is a thread that shows you how to fix it or replace it.

It seems to always get worse when colder weather comes right.

There is a tsb for it also.

 

it really sounded bad only low would quiet the noise, then to go away all the sudden ?

 

Mine makes the chirp on all settings.

 

More of a whistle notice than a chirp opened the filter housing and there was a leaf in there maybe that was the noise dusted filter and reinstalled. Let's see how that goes?