Air pump noise on start up?

[LC CT]

Quick question, is there an air pump that runs on start up for 30 seconds to a minute? On cold starts, get an air pump noise at the high idle then it drops and normal, sounds like it shuts off. This part of the air injection? Appreciate all the info and knowledge on this site, really helps alot learning a new vehicle.

 

[Markuson]

Quick question, is there an air pump that runs on start up for 30 seconds to a minute? On cold starts, get an air pump noise at the high idle then it drops and normal, sounds like it shuts off. This part of the air injection? Appreciate all the info and knowledge on this site, really helps alot learning a new vehicle.

if you can… post a recording.
(sometimes tge simplest way is to post a short video)

 

[bloc]

Yes. They are located in front of the passenger side front tire on the other side of the slots in the fender liner, if you want to narrow down the source of the sound.

 

[LC CT]

Yes. They are located in front of the passenger side front tire on the other sides of the slots in the fender liner, if you want to narrow down the source of the sound.

Gotcha, yea that’s the location, thank you

 

[CharlieS]

Air injection pump for emissions purposes.

 

[kwelhand]

Yes secondary air injection system.