HE/SHE DROWNS A LOT OF BLACK SMOKE

  • Tiny
  • carlos mora
  • 1994 Cadillac Concours
  • V8
  • FWD
  • automatic
  • 160,000 miles

My cadillac 1994 is installed or motor of 1996 norstart and flaw the gasoline drowns and be he black smoke and he/she goes out

Wednesday, February 23rd, 2011 AT 1:38 AM

1 Answer

  • Tiny
  • rasmataz
  • Member

Probable causes of an engine running rich are as follows: 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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Wednesday, February 23rd, 2011 AT 7:33 AM

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