5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

Car Problems

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Old Aug 31, 2007 | 11:37 AM
  #1  
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bmlawson
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Default Car Problems

I have a 1988 ford mustang 5.0 and it is blowing black smoke and choking out whenit does run the tach. is always jumping it is also getting like 3 miles to a gallon.I have already replaced the plug,Air filter, And i ran some gumout threwit but still no change. Does anybody have any suggestions on what i should do....
Old Aug 31, 2007 | 11:51 AM
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FivePointOhh
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Default RE: Car Problems

clean IAC and clean TB.

might not be a bad idea to run some seafoam through her. black smoke is either lots of carbon or too much fuel
Old Aug 31, 2007 | 12:09 PM
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bmlawson
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Default RE: Car Problems

Thanx for the tip wat is the IAC And TB??
Old Aug 31, 2007 | 12:15 PM
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WhiteWindsor
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From: Warner Robins,GA
Default RE: Car Problems

Idle Air Control, Throttle Body. Buy a manual, they are helpful sometimes.
Old Aug 31, 2007 | 12:40 PM
  #5  
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FivePointOhh
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Default RE: Car Problems

also check timing
Old Aug 31, 2007 | 01:11 PM
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bmlawson
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I checked the timing last night and its right were its supposed 2 be
Old Sep 1, 2007 | 09:27 PM
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bmlawson
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Default RE: Car Problems

Anymore suggestions????
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