: 2007 STS with a humming noise



blutone
09-14-12, 08:35 PM
When Im at a stop and the car in gear I hear a humming noise coming from the engine compartment, give it a little gas or put into park and it goes away. The noise cant be heard from the outside the car with the hood up, only from inside the car. Anyone else come across this?

EChas3
09-15-12, 12:55 AM
What engine?

blutone
09-15-12, 02:17 PM
v6 3.6

ddalder
09-15-12, 04:56 PM
Do you have all wheel drive? I have something that seems very similar to yours. I have a 4.6L w/AWD. I don't know that I'd quite describe it as a "hum", but that works because I can't think of a better term just yet. It's almost like a low pitched and faint growl. I've wondered if it was part of the AWD system.

dkozloski
09-15-12, 06:37 PM
When you are stopped nothing in the AWD system is moving.

EChas3
09-15-12, 10:39 PM
v6 3.6

That engine has a known issue with a valve neaar the rear that is prone to noisy operation. Even though your noise is different, some searchs may be worthwhile.

blutone
09-19-12, 06:47 PM
Its rear wheel drive

EChas3
09-19-12, 10:01 PM
The issue I describe only affects V6 equipped cars, but both RWD & AWD. If it happens when stopped, its not as likely to be transmission-related.