black muffler


  #1  
Old 12-14-08, 04:58 AM
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black muffler

Interested in buying a Liberty 2005, has about 42,000 miles, when I checked the muffler, alot of black on the pipe, so, what is that black stuff? My other car with over 90,000 isn't as dirty -- Help, thanks
 
  #2  
Old 12-14-08, 07:07 AM
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It could be oil residue from oil burning, but it's likely unburned fuel residue from an engine that was run cold a lot with short trips, mostly in town. Should it be the latter, it'll clean up fairly quickly with a long trip at highway speed.
 
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Old 12-14-08, 07:08 AM
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Soot. Sounds like the engine is running rich. Several possibilities there. I would get a code reader on it and see if anything comes up for starters.
 
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Old 12-14-08, 07:08 AM
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Beat me to it.
 
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Old 12-14-08, 07:11 AM
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Nice Tow_Truck, head this way the parade is coming up.
 
 

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