Yeah mine is definitely somewhere in the door.

 

It is probably the striker or the mounting tabs for the door panel.

 

you think your cars rattle? mine rattles squeaks and hummmms never blast 2 subs in a cobalt...your **** will fall apart

 

when i listen to bass heavy music, my outer door handle rattles like a hoopdie license plate.... really pisses me off, but not as much as the steering column and rear seat rattle

 

probably the control arm bushing. happened to me twice, one on each side.

 

Yah mine does too. I actually took the door apart about a month ago and checked to see if there was anything in there but there was nothing. I also dynamated the car, including the driver's door...it helped with road noise, but the rattle is still there.

I think the latch on the door that hooks onto the jamb striker maybe loose. I can wiggle it back and forth...

 

you know what they say something small left un checked turns into something big

 

Well i WD40'ed my passenger striker and the sound was still there initially.....so i figured oh well , i better try something else.............But today it completely stopped ?? I'm very surprised ....It (wd40) must have worked its way into the area that was causing the squeak . I'm amazed because some of the roads i hit today were terrible and would have drove me crazy if the door was still squawking.

 

This is more of a knocking/clicking, than a squeak.

 

I see, mine sounds like the door isn't shut all the way . It used to thump and squeak and rattle and knocked lol, a little of everything. The weather cooling down up here may be helping my situation as well.

 

yep WD 40 & duct tapes all you need to fix a cobalt

 

Double sided sticky tape is your friend.

 

Mine makes a weird noise right by the door jam on the driver's door but ONLY if I have my window cracked open a little...like 1 inch or less...doesn't do it if it's closed..or if it's opened anything more than about an inch...freaking weird.

 

Has anyone found a fix for this? I'm experiencing the same exact issue as OP and it's beyond annoying.

 

check the lever you pull to adjust the seat, thats where my rattle was when i thought it was coming from the door.

 

Not it, definitely sounds like it's coming from the door