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892 Views 4 Replies 4 Participants Last post by  bradleyheathhays
2011 Crown Vic here with 305k miles, and today my engine light comes on. Scan at the local Advanced comes up with 4 codes on the cat converter. Guy says I need to get something called Cataclean and run it through the gas tank to correct the problem.

Is it worth doing this...will it make the engine run better or get better gas mileage?

Should I use Cataclean or some other product to get this done?
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i would expect you to be on your 4th or 5th set of spark plugs and at least 2nd maybe 3rd set of o2 sensors. Among many other things.
you have a talent for under estimating. Slammed; ya must be an optimist . :grin
catacutter converter.. yep
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