Check your warranty info and call your local Ford dealer about your rust issue. the car should be covered for 5 or 7 years for rust (not sure) and your 2008 could still be covered. If it is still covered don't take no for an answer. I had a rust issue and they did not want to fix it. They said it was surface rust and was not covered. They gave me a lot excuses but in the end they fixed it .I would not give in.