exhust smoke

1987 FORD F-150
151,000 MILES • V8 • 2WD • AUTOMATIC
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DANDOLF73
  • MEMBER
  • 1 POST
1987 ford f150 muffler plugged up replaced muffler and cats still blowing out blake smoke
Feb 12, 2011 at 11:48 AM
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WRENCHTECH
  • ✓ASE Certified Mechanic
  • 20,761 POSTS
  • ASE Certified Mechanic
The black smoke indicates an over rich mixture and likely the cause of the blockage in the first place. You could have a bad fuel pressure regulator, injector, temp sensor, bad MAF etc. It needs to be diagnosed properly.
Feb 12, 2011 at 12:58 PM
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