juiceme Posted December 18, 2010 Report Share Posted December 18, 2010 hello i am a owner of hyundai entourage which is a 2007 model and i had bought it second hand my problem with this car is that i have recently noticed that carbon has been accumulating on the chrome tips of the exhaust. any clue of how could this have happened as i got my car serviced just 2 mths back please help Link to comment Share on other sites More sharing options...
highfly Posted December 18, 2010 Report Share Posted December 18, 2010 Check spark plugs if it need change. If not use injector cleaner from STP from eppco or Emarat and drive at 120kmph for atleast 1 hr on highway. And see if it helps cleaning the injector and carbon. Put whole bottle in quarter tank not full as said by STP. Link to comment Share on other sites More sharing options...
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