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.

starting weird

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Old 05-08-2007, 03:32 PM
  #1  
Esgaroth
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Default starting weird

92 LX 5.0.
I recently had a valve job done on my heads and after putting everything back together there has been a slight issue while starting. I turn the key and hold it as long as I want but it will not start while I am holding the key in the start position. As soon as I let go of the key, the engine starts every time without any other problems. The engine runs good. Ive checked the timing, fuel pressure, compression, and spark. Its all there. What do you guys think?
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Old 05-08-2007, 03:36 PM
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mattdel
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Default RE: starting weird

sounds to me like the exhaust valves aren't seating correctly
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