Well i noticed about a week ago. when i come to a stop in first it seems to bog down and drops to .5 rmps. and then i began to put it in neutral coming to a stop and i just noticed it did it in neutral today. Does anyone know what that would be?

Plus my elecric steering went out and i was going to take it to the dealer but it wasnt doing it anymore than shortly after it began to do it. i checked the battery and it all checks out. Im gonna take it to the dealer some time this week.

Thanks for the help!

 

mine is doing that rpm drop because my o2 sensor is bad.

 

Do you have a cel? I dont

 

no I found out after doing some checks. It was reading about 3 points off.

 

Thanks for the help ill check it out this weekend its supposed to be a tad warm.

 

what are these "points" you speak of,

FZWCobalt_09 is your car an auto, might be a harsh downshift. ie: problem with trans.

 

AFR mine is reading 18:1 when its really 15:1

 

No its a ss sc. I was driving home tonight and the cel came on. im taking it to the dealer asap!

 

i have the same problem..but once the car warms up completly it goes away,or when i floor it in 2nd and some 3rd i gets fixed...

 

I have that problem in my 2.2

If I stop really quickly the RPMs drop way down to borderline stall for a split second, then come back up to normal

 

what fix's mine is when i hit it in 2nd and some 3rd..than when i come to stop its good

 

K ill look in to it. i have to take my car to the dealer anyway because my electric steering went out so ill have them check it also. but also my electric steering only goes out after i drive a while? i have check the battery and everything i can think of that would change that but i have never had electric steering before and quite frankly dont know much about it!

 

its just a fuse i guess....mine went out when my tranny blew...sucks not having steering when rolling at 5mph...gotta use some ***** to actually turn it,lol,but it ended up bein a blown fuse because its electrical and not mechanical

 

had that problem with my 2.2..it was a bad MAF sensor...but yours sounds different..

 

cmon guys!!!
this is a super common problem fixable with a dealer reflash, nothing wrong w/ your car it happens to pretty much every ss s/c nothing bad happens if you dont tho just kinda annoying

 

RPM flutters are nothing new for the Cobalt, they all do it. I believe there is a flash available that updates the computer & eliminates the issue.

damn, i was 1/2 second to slow

 

Thanks alot guys im taking it to the dealer tomorrow moring or tomorrow night!

 

I have the reflash and it still does it

 

My car was doing the same thing too. Come to a stop, RMP's drop to near shut down, then rise back up again to normal. It's currently at the dealership right now and I'm waiting to get it back. Still under warranty.

I'm gonna be asking alot of questions though, because this (and many other problems *read my past posts*) only started AFTER I brought it in for a simple oil change.

 

Im at school now but when i get home ill replace it. but when i start it up it will work for a couple minuits and then it goes out. so idk what that would be cuz if it was the actual electric steering then it would not work at all?