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.

Shut off problems

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Old 03-22-2009, 08:46 PM
  #11  
Jfsram
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It might be preignition. There is hot spots in the combustion chamber from sharp points or carbon build up, hot enough to light the ignition without a spark from the spark plugs.

It's not fixing it but a sometimes a higher octane of fuel will resisting igniting from a hot spot.
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