Hi, I have a 2004 Sorento, starting fine and all is ok until after about 20 minutes of drive jeep will start to blow clouds of black smoke at the back... got all filters changed and oil as well, but the problem still there.. Is this something issue with overheating or what,, please help...

Asked by Oct 24, 2014 at 07:33 PM about the 2004 Kia Sorento EX 4WD

Question type: Maintenance & Repair

2 Answers

65,645

Black smoke,is fuel loading up,if it,is gray it,s oil,white is water,it,s hard to answer without knowing,if you are loosing oil,or water?

1,730

you're burning oil 2 or you're running a very rich air/fuel misture. running rich means your engine is getting a fuel/air mixture that has too much gas in it. that causes the dirty smoke i think this is what's happening. that's why your car feels like it's clogged. cuz you drove your car like this so long that the black smoked fouled up your catalytic converter and it's not flowing as well anymore. you'll have to replace the catalytic as well as the oxygen sensors, then repair whatever emissions component caused your car to fail and go into "rich mode" in the first place

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