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2013 corvette w/auto trans

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Old Apr 18, 2016 | 05:45 AM
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Default 2013 corvette w/auto trans

Hear something like a small motor running, even after the car has been setting for a while (like over night). First sounded like the steering column, or cd changer. So intermitten is hard to tell.

After a week or so with out running the car, the battery is low to the
point of using a trickle charger before starting. Any Ideas out there??



Tks Pr. Putz
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Old Apr 18, 2016 | 10:27 AM
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The HVAC blower runs to purge moisture from the system for a few minutes after shutting the engine down. My dealer taught me about this one. Sometimes I think the darned car is possessed, but that's the way the smarty pants in Detroit design them.

Check your PMs ...

Last edited by gbrtng; Apr 18, 2016 at 10:28 AM.
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Old Apr 19, 2016 | 07:45 AM
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PM's ????
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Old Apr 19, 2016 | 07:45 AM
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Default PM's

PM's ????
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Old Apr 19, 2016 | 03:52 PM
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Originally Posted by preacher putz
PM's ????
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Old Apr 20, 2016 | 09:46 PM
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Originally Posted by gbrtng
The HVAC blower runs to purge moisture from the system for a few minutes after shutting the engine down. My dealer taught me about this one. Sometimes I think the darned car is possessed, but that's the way the smarty pants in Detroit design them.

Check your PMs ...
The feature you mention is called "Afterblow" (sounds exciting, eh?) and must be enabled by changing the setting with a scan tool. My understanding is that the cars come from the factory with afterblow deactivated, but many dealers in the humid south turn it on.

OP-
Our 2009, without afterblow, makes the "small motor noise" immediately when we open the door to get in, I think it's the Nav system waking up but never tried to trace it out. It does shut down quickly when we turn off the car.

How old is your battery, and has it been load tested recently? Corvettes tend to be hard on batteries, some more than others. The noise and the dead battery might not be related.

Never trust an electron...

Last edited by Gearhead Jim; Apr 20, 2016 at 09:51 PM.
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