car problem

2001 PONTIAC GRAND PRIX
85,000 MILES • 6 CYL • 2WD • AUTOMATIC
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DKR71
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  • 3 POSTS
I have a grand prix gt when i start it black smoke came out. than I put gas cleaner in and white smoke comes out. What can I do.
Feb 17, 2011 at 10:57 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 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
2.Defective Oxygen Sensors.
3.Leaking injectors and fuel pressure regulator.
4.Coolant temperature sensor out of calibration.
5.Restricted air intake system.
Feb 17, 2011 at 10:59 PM
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DKR71
  • MEMBER
  • 3 POSTS
so what can i do to fix this problem
Feb 17, 2011 at 11:03 PM
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DKR71
  • MEMBER
  • 3 POSTS
what can i do to fix this matter
Feb 17, 2011 at 11:06 PM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Start testing the above mentioned-it might lead you to your problem,it's not an easy fix.
Feb 17, 2011 at 11:38 PM