i know that its the thing where you feed air into the tire from ( that long thing, forgot what its called...)
but yeah, any idea how to replace or fix it?

 

Valve, and I think that I would just take it someplace to have it done. I'm pretty sure you have to remove the tire from the rim, pop the valve out and then put another one in. I'm not sure if you have to seal the valve into the rim, probably but I'm not sure. I don't think that it would be too expensive to have it done, maybe $15/wheel????

 

is the valve just bad or the whole valve stem?

if the valve stem is messed up, the tire needs to come off. If the valve is just broken, you can get a little valve remover tool and unscrew it (when the air is out of the tire of course) and swap in a good one.

 

It's possible that the valve itself just isn't tight, it screws in and can work itself loose. Any auto parts store or bike shop will have the little tool to tighten/remove it.

 

oddly enough I was just looking at recalls on honda's and this is one of them for a 94 accord.... I don't know what year/model you have but perhpas there is a recall on it.... search the net for "year accord recalls" and you should be able to find it... Not a for sure thing but it's worth a shot...