I need the part # or a link to the o-ring that is found on the gas cap.

2003 s40

 

Gas cap: 9475962
O-ring:6842302

You could check out the dealer for the parts or take the ring and try to find the same at some parts store or strangely enough at HomeDepo.
BTW what makes you think you need these?

 

Thanks.

Check engine light is on and I took the car to autozone. I don't have the code with me (it's at home) but I think it was something like P0403?

The printout they gave me said it could be the gas cap / leak in a hose? / no vacuum pressure?

People were telling me the #1 culprit is the gas cap. The gas cap is def on but the o-ring has cracks all over it, so I figured some low hanging fruit to see if this takes care of it before taking it in.

Thanks again,
Tom

 

I had the same problem. A mechanic told me the code is for gas cap. Found cracks on the gasket ring, replaced cap ($30). The check engine light went away for several days but came back on? Any suggestions?