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Old 04-04-2014, 11:24 AM   #1
fun in dirt
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? motor running noise in dash

Got a '01 Suburban 2500 6.0...when the key is on, I can hear some type of small motor running. It's not real loud but noticeable. Sounds kind of like heater/ac blower motor, but does it even when that is all turned off. Seems to be coming from somewhere around center of dash.
Just curious as to what this sound is?
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Old 04-04-2014, 09:06 PM   #2
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Re: ? motor running noise in dash

Some of the 2000 and up trucks have a small deal just above your head in the headliner that just may be the source of your noise. My 06 crewcab and 03 Tahoe both have these and both make a sort of buzzing noise. Real noticeable when the radio is turned down. It stops when the key is turned off. I think I was told it is a small blower/sensor deal for the climate control or something.
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Old 04-04-2014, 09:23 PM   #3
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Re: ? motor running noise in dash

It's normal. There are something like 8 motors in the dash. They cycle when key is turned on. Regardless if heat is on or off
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Old 04-07-2014, 11:15 AM   #4
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Re: ? motor running noise in dash

Hmmm interesting - thanks guys!
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'85 K30 "Big Nassy"
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'06 Silverado SS...DD
'06 C1500 WT...DD
'07 Classic C1500 WT...DD
Built & sold cause can't keep 'em all:
'72 Blazer "The Bucket" http://67-72chevytrucks.com/vboard/s...d.php?t=433190
'55 Chevy straight axle gasser https://www.trifive.com/forums/showthread.php?t=173938
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Old 04-07-2014, 03:02 PM   #5
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Re: ? motor running noise in dash

What about a thumping sound? At times, the dash in my 05 sounds like it has critters thumping around in it.
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Old 04-07-2014, 06:40 PM   #6
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Re: ? motor running noise in dash

Quote:
Originally Posted by 68Stepbed View Post
What about a thumping sound? At times, the dash in my 05 sounds like it has critters thumping around in it.
could be the blend doors... again normal
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Old 04-07-2014, 07:21 PM   #7
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Re: ? motor running noise in dash

Quote:
Originally Posted by 68Stepbed View Post
What about a thumping sound? At times, the dash in my 05 sounds like it has critters thumping around in it.
Matt, turn that radio down.
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Old 04-07-2014, 07:27 PM   #8
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Re: ? motor running noise in dash

Quote:
Originally Posted by Boog View Post
Matt, turn that radio down.
I have to turn up the radio to block it out.
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