[jvondauber]

Today, my check engine light come on in my truck. I was expecting the worse, an O2 sensor at best. it turns out that the metal flap in the fill line of my gas tank (near the gas cap, where you stick the nozzle in to fill it), broke off. It was giving an error of an defective gas cap.

Has anyone heard of this before or had this happen?? Does anyone know whether or not it will cause me to fail emmisions when i get it inspected?

My truck is a 2003 Ram 1500 w/ 4.7L.

Thanks

 

[bucci]

My truck never had a metal flap where you stick the gas nozzle in. Are you sure yours had one?

 

[WTJackalope]

I had the same problem. New gas cap fixed mine.

 

[mheideman]

Theyve been putting them in every vehicle for a few years. Its supposed to be an anti-siphon feature.

 

[jvondauber]

I thought I had one, maybe not. I should try a new gas cap.

 

[bucci]

Theyve been putting them in every vehicle for a few years. Its supposed to be an anti-siphon feature.

When I take my plastic gas top off, I see the opening for the gas nozzle that is just a little bit bigger than the nozzle on the unleaded gasoline pump handle. There is no metal flap, just an open hole.

I had vehicles that had the metal flap, but not this one. My father's '02 Ram doesn't either. Maybe Dodge started using them again after '03.

 

[kenihemi]

I don't have a flap in my 04.

 

[silentblinder]

My 05 doesn't have the flap . My 04 didn't have it either. You sure it was there to begin with? Maybe they still had the anti-syhpon flap on the 03s?

 

[bucci]

No flap in my '03.

It goes back to my original thought. jvondauber probably never had one either.

 

[mechtech]

No flap in my '03 either.I had the check engine light come on this past weekend.Read the code and it came up with the emissions thing with the gas cap.I was out of town at the time so I greased up the large o-ring on the cap,wiped the code and everything has been fine since.I ordered a new cap and it is a change up from the original.Apparently it seals better.I'll just hang onto it until the code shows up again.