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2014 Chevy Silverado
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Vibration when turn A/C on

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Old April 8th, 2014, 9:09 AM
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Default Vibration when turn A/C on

The other day i turned my truck on (2001 2500hd) and it was kinda hot so i turned the a/c on and when i turned the blower up it have some strange vibration somewhere and i turned it to heat and tried changing up all the stuff but it wouldnt quit til i turned off the A/C..... Help?
Old April 8th, 2014, 9:57 AM
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Was the vibration with the engine or the AC?
If engine, you may need to clean the throttle body and or the Idle Air control...
Old April 8th, 2014, 4:21 PM
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It sounded like it was in the vents actually, dont know whats in there, but i think something might be loose. The reason i say that is because when i turned the blower up to 3 then to 4 it kept getting louder with the more air flow. Any ideas?
Old April 9th, 2014, 7:10 AM
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Sounds like the blower (fan assembly) might be out of balance or possibly broken causing it to wobble and vibrate....
Old April 9th, 2014, 10:40 PM
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any idea how to get in there and fix it?
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