Need some help on a few different issues...I just bought an 07’ Mustang GT ...only had the car a few weeks. She has 116,000 on the clock...has had a couple of aftermarket things added Airaid cold intake. She’s been lowered an exhaust Nothing major...now I’m getting a slight knock one you can hear and actually feel through the valve cover Has anyone dealt with Fords extended warranty program? It came with a 12 month limited warranty (bought from a ford dealer) just curious if anyone has had MAJOR problems with an engine and how ford treated them? What to do next?