HE/SHE DROWNS A LOT OF BLACK SMOKE

1994 Cadillac Concours

Tiny

carlos mora

February, 23, 2011 AT 1:38 AM

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

FOUND 735 RELATED QUESTIONS

Black Smoke Coming From Exhaust

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100 IMAGES

Smoking

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48 IMAGES

1 Answer

Tiny

rasmataz

February, 23, 2011 AT 7:33 AM

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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