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What is trouble code Po420 the check eng. light keeps coming on in town driving

(1997 Ford Contour)
in Powell, WY on December 09, 2012
No check eng light when driving on long trips. Only in town
Displaying 1 answers & 7 comments
Popular Answer
on December 09, 2012
cat converter has failed and needs to be replaced

Roy
on December 09, 2012
Ouch! How many cats are on this car? more than one I fear. Looks like the front one is part of the exh. manifold. What would happen If I ran a couple gallons of paint thinner through the thing.
on December 09, 2012
there is nothing you can do but replace it.

Roy
on December 09, 2012
what do you think of this repair? I think it's kind of scary, I'm retired now, an ASE tech. myself, for about 30 years. Now I repair Porsche electrical problems, in my own shop for a lucrative hobby. (one or two a year, pays for my toys anyway) Things change very fast in this business. We are also talking about a $500 car. Beautiful, runs great, about 31 mpg. but I've heard that a cat for this car is around $800. Check out this video, their are a lot of nuts out there. www.youtube.com/watch?v=5icTmYItwiE
on December 09, 2012
straight forward repair. the bolts may be tight from the age but nothing out of the ordinary. the precious metals are all gone in the cat and thats the reason for the code.

Roy
on December 09, 2012
what do you think of this repair? I think it's kind of scary, I'm retired now, an ASE tech. myself, for about 30 years. Now I repair Porsche electrical problems, in my own shop for a lucrative hobby. (one or two a year, pays for my toys anyway) Things change very fast in this business. We are also talking about a $500 car. Beautiful, runs great, about 31 mpg. but I've heard that a cat for this car is around $800. Check out this video, their are a lot of nuts out there. www.youtube.com/watch?v=5icTmYItwiE

I'm curious to know if this is something that is really done to cars.
on December 09, 2012
you can get a universal for about 100 bucks

Roy
on December 09, 2012
Scott Kilmer does it and sounds convincing...why don't you give it a try Extreme-41?
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