# Humming / buzzing noise with key turned **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** neon, dodge\ **Created:** [October 21, 2017, 6:36pm UTC](https://community.cartalk.com/t/humming-buzzing-noise-with-key-turned/108799 "2017-10-21T18:36:29Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![kilsnacks](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/kilsnacks/32/5290_2.png) [@kilsnacks](https://community.cartalk.com/u/kilsnacks)\ **Post date:** [October 21, 2017, 6:36pm UTC](https://community.cartalk.com/t/humming-buzzing-noise-with-key-turned/108799/1 "2017-10-21T18:36:29Z")
Hey there so my mom’s car has been having a bunch of problems and when I was just looking over her car I noticed that with the key turned to on it makes a buzzing or humming noise I’ll link a video hope you can hear it. I was wondering what this could be. She replaced the battery about 1 or 2 years ago with a battery from AAA that costed $150 and is supposed to last 7 years. The humming will get higher pitch when you turn the key off for around 20 seconds than stops. [https://youtu.be/579nt8bP974](https://youtu.be/579nt8bP974) Also my mom’s car will make the chirping noise when you turn the key on and re lights go o and off but it will sometimes make that chirping noise 10 or 20 times in a row like in the middle of each other it’s really odd. I’ll see if I can record that too when it does it again. So it must have something electrical wrong but I dunno what to look thank you for your help in advanced. ---
**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\ **Post date:** [October 21, 2017, 6:42pm UTC](https://community.cartalk.com/t/humming-buzzing-noise-with-key-turned/108799/2 "2017-10-21T18:42:59Z")
This battery that costed (SIC) 150.00, does it start the vehicle? ---
**Author:** ![kilsnacks](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/kilsnacks/32/5290_2.png) [@kilsnacks](https://community.cartalk.com/u/kilsnacks)\ **Post date:** [October 21, 2017, 7:27pm UTC](https://community.cartalk.com/t/humming-buzzing-noise-with-key-turned/108799/3 "2017-10-21T19:27:07Z")
Yeah it starts fine and right away. ---
**Author:** ![COROLLAGUY1](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/corollaguy1/32/7575_2.png) [@COROLLAGUY1](https://community.cartalk.com/u/COROLLAGUY1)\ **Post date:** [October 21, 2017, 7:52pm UTC](https://community.cartalk.com/t/humming-buzzing-noise-with-key-turned/108799/4 "2017-10-21T19:52:00Z")
Are you sure your headlight are turned off? This buzzer can warn you in case you forgot to turn them off. ---
**Author:** ![kilsnacks](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/kilsnacks/32/5290_2.png) [@kilsnacks](https://community.cartalk.com/u/kilsnacks)\ **Post date:** [October 21, 2017, 7:53pm UTC](https://community.cartalk.com/t/humming-buzzing-noise-with-key-turned/108799/5 "2017-10-21T19:53:46Z")
Yes they are off also. ---
**Author:** ![COROLLAGUY1](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/corollaguy1/32/7575_2.png) [@COROLLAGUY1](https://community.cartalk.com/u/COROLLAGUY1)\ **Post date:** [October 21, 2017, 9:25pm UTC](https://community.cartalk.com/t/humming-buzzing-noise-with-key-turned/108799/6 "2017-10-21T21:25:45Z")
It would be great if you had a stetoscope to pinpoint where the noise is coming from.I suggest you drive to a trusted mechanic and have him listen to it.He will probably not even charge you for his diagnostic. ---
**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\ **Post date:** [October 21, 2017, 9:37pm UTC](https://community.cartalk.com/t/humming-buzzing-noise-with-key-turned/108799/7 "2017-10-21T21:37:59Z")
Could be the fuel pump. Those’ll run whenever you turn the key, even if you don’t turn it far enough to start the engine. And they hum/buzz. Or it could be self-testing the EVAP system. My guess is that rascal is right. He’ll probably recognize the noise immediately and not even other to drive it into the shop’s bay.