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2008 Hyundai Starex Black smoke from exhaust

Tiny
ABUTEBA2003
  • MEMBER
  • 2008 HYUNDAI STAREX
2008 Hyundai Starex 4 cyl Two Wheel Drive Manual

Dear Sir,

Please help me about the reasons for the emergence of black smoke from the exhaust and what are the methods of treatment.

Thanks and best regards
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Friday, September 3rd, 2010 AT 5:09 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Probable causes of an engine running rich are as follows:

1. Excessive fuel pressure can be cause by restricted fuel return line or defective fuel pressure regulator.
2. Defective Oxygen Sensors.
3. Leaking injectors and fuel pressure regulator.
4. Coolant temperature sensor out of calibration.
5. Restricted air intake system.
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Saturday, September 4th, 2010 AT 5:22 AM

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