Electric Vehicle Forums

Electric Vehicle Forums (/forums/)
-   GM Hybrid Trucks, Cadillac Escalade Hybrid, Chevrolet Tahoe Hybrid & GMC Yukon Hybrid (https://electricvehicleforums.com/forums/gm-hybrid-trucks-cadillac-escalade-hybrid-chevrolet-tahoe-hybrid-gmc-yukon-hybrid-69/)
-   -   Humming noise near glove compartment (https://electricvehicleforums.com/forums/gm-hybrid-trucks-cadillac-escalade-hybrid-chevrolet-tahoe-hybrid-gmc-yukon-hybrid-69/humming-noise-near-glove-compartment-28408/)

CYKBC 12-16-2012 04:15 PM

Humming noise near glove compartment
 
I started to notice this noise a few weeks ago. It's coming from the glove compartment area.

-Sounds like a hmmmmm type noise from an electric generator
-Quiet enough to hear in autostop mode in a garage and not loud enough to notice over road noise
-Doesn't always hmmmm and seems to be independent of whether I put on the climate control on or off, audio, etc.

Is this normal or should i get it checked out? it's kind of annoying when i'm sitting in the car at a stop... i just kind of zone in on it now. it definitely hums.

evois 12-16-2012 10:09 PM

Re: Humming noise near glove compartment
 
paper or dirt in the fan?

CYKBC 12-17-2012 05:38 PM

Re: Humming noise near glove compartment
 
Can't be that. It's a flat hum. Like something is switched on that's electrical.

Hillbilly_Hybrid 12-17-2012 07:39 PM

Re: Humming noise near glove compartment
 
It could be cooling pumps. In a quiet garage, in Auto-Stop, in park, listen up front near the Chevy Bow Tie.

There are 2 pumps that cool the HV electronics. On quiet nights I can hear them as I walk away from the vehicle for several seconds after key off.

If it is the 2 pumps, you can key off from park in Auto-Stop and hear them run for several seconds. Then they will just shut off.

CYKBC 12-17-2012 11:00 PM

Re: Humming noise near glove compartment
 
no, this humming noise goes off the moment i key off from park as you described and can only be heard from inside near the glove compartment in autostop, quiet area. it's not on all the time, but it's on often enough. weird.

Hillbilly_Hybrid 12-18-2012 06:53 AM

Re: Humming noise near glove compartment
 
There is another pump that runs with the engine off to pump hot engine block water to the heater.

CYKBC 12-18-2012 08:24 AM

Re: Humming noise near glove compartment
 
Near the glove?

Hillbilly_Hybrid 12-18-2012 05:32 PM

Re: Humming noise near glove compartment
 
The pump is on that side of the engine near the front of it. There may be a hose routing that allows noise transmission. Other than that maybe the heater AC blower?

CYKBC 12-18-2012 10:02 PM

Re: Humming noise near glove compartment
 
Ill just live with it. Thanks as always hh

evois 12-19-2012 12:08 PM

Re: Humming noise near glove compartment
 
there is also a hole in the bulkhead that may possibly transmit that sound.


All times are GMT -7. The time now is 02:10 AM.


© 2024 MH Sub I, LLC dba Internet Brands