2004 Ford F-150 4 Dr Lariat Extended Cab 6.5 ft. SB Discussions - Questions and answers for used Ford F-150 - Should I have warnings before catalytic converter failure?

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ran

04/16/2007, 12:58PM

Should I have warnings before catalytic converter failure?

I have been told by Ford dealer that my catalytic converters have failed. Should I have had an indication or warning before they completely go out?

98DAK

04/17/2007, 12:55PM

There are warnings other than a check engine light, such as a rattling under the vehicle. If the ceramic in the converter totally breaks loose and turns, it can cause the O2 sensors to trip, and a very rough idle. I have seen converters get red hot and in one case catch the carpet in a ford LTD on fire

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