Hi so I have an issue with my car violently vibrating when I travel about 50mph or higher. So I'm wondering what does it look like inside your fuel cap? So when I am filling up I press the button and pop the outer door I open it and unscrew the next bit. so I am like 99% sure the actual hole where I put the nozzle used to have a metal door? I inserted the fuel nozzle and it pushed in. I filled up today and didn't see this silver door. Am I imagining this? Because I can see right down the fuel line and I don't think this is normal. I'm thinking the silver door came loose and it now in my fuel tank causing problems hence why I'm getting the vibration. Please tell me if you have the silver door I don't wanna open my tank and waste my time thanks