2011 Impala semi-phantom drain

[Elkins45]

My FIL passed away in July and his 2011 Chevy Impala has been parked in our driveway. I’m finally getting around to cleaning it out and getting it ready to donate to a family member who need a car. It’s a rebuilt title so who knows what sort of redneck voodoo has been done to it, but it has some sort of persistent current drain coming from inside the dash. There’s a clicking sound in the center dash that starts as soon as I open the door and persists even after the key is removed. It seems to stop eventually but the battery gets drained after a few days.

My guess would be an electric motor running the blend door, but why would it continue after the ignition is off? What else might it be?

 

[Kira]

How many miles are on it?
When was the rebuild title issued?

On a schedule which provides consistent battery power, try pulling one fuse at a time.

 

[dishdude]

Check the CD player too, they can jam and do this.

 

[Elkins45]

How many miles are on it?
When was the rebuild title issued?

On a schedule which provides consistent battery power, try pulling one fuse at a time.

103k, and it was a rebuild when he bought it, so at least 7-8 years ago.

 

[carlprop]

My FIL passed away in July and his 2011 Chevy Impala has been parked in our driveway. I’m finally getting around to cleaning it out and getting it ready to donate to a family member who need a car. It’s a rebuilt title so who knows what sort of redneck voodoo has been done to it, but it has some sort of persistent current drain coming from inside the dash. There’s a clicking sound in the center dash that starts as soon as I open the door and persists even after the key is removed. It seems to stop eventually but the battery gets drained after a few days.

My guess would be an electric motor running the blend door, but why would it continue after the ignition is off? What else might it be?

Your guess is correct. It is the blend door actuator located behind the glove box. I had the exact same symptoms of clicking when the door was opened. I had it replaced on my 2012 Impala and that fixed the problem.