The dealership where I bought my car gave me a hard time about cat replacement when my VIN didn't show up in their OASIS report. My cats were quite obviously plugged but they refused to the full recall work and just replaced the main cat under the emmisions warranty. When I returned with the same problem after 40K miles, they replaced the obviously cracked up wire harnesses with no questions. Your dealer - service rep. may be more understanding than the customer phone person. It may be helpful to mention that it's a safety hazard. (OASIS is NOT always correct, but Ford folks will never question it's output.)
