My 2008 Corolla has a loud rattling noise on cold start ups. It started last winter and is worse this year (there was no noise during the summer). It seems to change when I put it into gear. It sounds like an exhaust hanger is missing but all looks well underneath the car. My mechanic coworker said it might be the innards of the catalytic converter. I have 65K and should still be covered under the emissions warranty.
If I bring it into Toyota and it's not the CC will they charge me for checking it?
What else could it be?
If I bring it into Toyota and it's not the CC will they charge me for checking it?
What else could it be?