Exhust smoke

DANDOLF73

MEMBER
1987 FORD F-150
V8
2WD
AUTOMATIC
151,000 MILES

1987 ford f150 muffler plugged up replaced muffler and cats still blowing out blake smoke

Saturday, February 12th, 2011 AT 11:48 AM

1 Reply

WRENCHTECH

MECHANIC
20,761 POSTS

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.

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