You know how most if not all cars have a little internal metal gas cap that goes in and out when you put the gas pump nossel in? Does the Cobalt have this as well. If it does then my SS is missing this piece and it must have broken off and went down into the tank.

Does the cobalt have this piece?

 

I noticed mine is missing as well... I think I remember mine having one when I bought it. I think ALL cars come with it these days.

I don't know that it necessarily BROKE OFF as much as it might have just opened and not closed.

 

i don't think mine has ever had one.

 

Mine never had one either, which I found a bit odd. I put some gas in my girlfriends Grand Cherokee the other day and I don't remember hers having one either, but all other cars I've seen have.

 

Someone go to the dealership and check a new one! Hahaha.

 

I think there is another thread about this, and no one ever can to a conclusion if it should or shouldnt have one

 

I don't think any Cobalts have them. I know mine doesn't.

 

I have one

 

see what i mean...

 

BS!!!

 

all cobalts has em..... theres a TSB at gm for them..... seams they break alot......

 

I dont have one BTW

 

you have one.... its just broken hahahaha

 

both my cobalts have em (sedan LT (traded in) and SS/SC), my canyon has one too.

 

Hey in your sig you forgot to mention the removal of the blower after marriage mod.

 

mine never had one from day one. Some cars don't have it and some cars do. Toyota doesn't do it. Well let me rephrase... The three that my mother had including a lexus, didn't have one.

 

Does anybody know the purpose of these internal caps?

 

i get mine thursday ('08, straight from the factory) and i'll be sure to check it before anything else

 

do you have a link to the tsb? Also if it did break off do they have try and get it out. I mean doesnt seem like a good idea to have a piece of metal in the tank that could block something up

 

After more than a year with my '05, I realized mine didn't, could of sworn it had one before. Went to the dealer and they said they looked at other cars on the lot and they didn't have them either, told me not to worry about it.

 

There should be a check valve further down the neck

 

I know mine never had one...I also am a tech for a Honda dealership and none of the Hondas have them.

 

From what i kno they are a second defense against air. As you probably know, gas evaporates in air so it makes it a second defense against it. Sometimes ppl leave the external gas caps off by mistake, my intelligent guess would be this is to help them until they realize the external one is off.

I like the fact that i don't have one because i can now fill my tank even more.

 

i cant link to the tsb sorry....... but dont worry about it bro. dealers dont. so u shouldnt lol