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Old 08-12-2003, 11:42 AM
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damaged catalytic converter?

I had my car at the mechanic for head work over the winter, and he sent the head out to another shop for resurfacing. When they were putting it back together the valve seals were installed improperly. I drove the car like this for about 3,000 miles. I noticed it was using a lot of oil and runnung very rough so I took it back to the mechanic. He fixed the valve seals, put in new plugs, and cleaned the fuel system no charge to me. My question is since it was leaking oil all over, it possible that oil got into the catalytic converter and damaged it? I've experienced acceleration problems since then and posted a previous message concerning that. Some of the answers I've seen have mentioned a clogged cat? Anything to it?
Thanks for your help.
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Old 08-12-2003, 09:35 PM
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Join Date: Feb 2003
Location: Ontario, Canada
Posts: 3,160

Excessive oil consumption can certainly be very hard on a cat. converter.
Reminds me when Ford recalled my 1988 Mustang 5.0, to replace the entire exhaust system ( 4 cat. converters ).
In their infinite wisdom, they used " low tension " piston rings ( to reduce friction ), and thus ended up with high oil consumption & contaminated cat. converters.
If you suspect yours is plugged, or partially plugged, you could easily check for exhaust back-pressure with a vacuum gauge.
2007 C 230 Sport.
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