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 won't start after installing headers

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Old 02-28-2008, 08:37 PM
  #11  
Bullitt91
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Default RE: Car won't start after installing headers

it sounds like crossed plug wires to me
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Old 02-28-2008, 08:38 PM
  #12  
19stang86
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Default RE: Car won't start after installing headers

Check the vaccum that goes to the MAP sensor I did it before when working on the driverside. it did the same thing run only when giving it gas.
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Old 02-28-2008, 08:40 PM
  #13  
aode08
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Default RE: Car won't start after installing headers

I dont like putting headers on the SN
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Old 02-28-2008, 09:38 PM
  #14  
94Yellow50
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Default RE: Car won't start after installing headers

^^whys that?...my friends 95 was simple enuf..an that was bbk equal lengths...just wondered why u thought that cuz ill be doin mine when i get it outta storage...
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Old 02-29-2008, 12:46 PM
  #15  
flyinghigh2k8
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Default RE: Car won't start after installing headers

It's not the plug wires we have checked them a ton of times. We finaly did get it to run by just ajusting the timing but with no timing light, we just rotated the distibutor. But it is still running HORRIBLE. It has NO POWER, please help guys this is freaking meout, my car usualy runs amazing and has no problems.
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Old 02-29-2008, 12:55 PM
  #16  
aode08
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Default RE: Car won't start after installing headers

Definetly Sounds Ignition Related, you have to adjust the timing with a light though.


Dont go mad over this, its actually simple.
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