Black smoke

Tiny
VIPERJR76901
  • MEMBER
  • 2000 FORD RANGER
  • 6 CYL
  • 2WD
  • MANUAL
  • 165,000 MILES
2000 ford ranger 3.0 ltr flex fuel blows black smoke after running for a few seconds
Friday, January 28th, 2011 AT 4:57 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Probable causes of an engine running rich

1. Excessive fuel pressure can be cause by restricted fuel return line
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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Friday, January 28th, 2011 AT 7:45 PM

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