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 will not start

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Old Oct 27, 2014 | 06:52 PM
  #1  
glunger's Avatar
glunger
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Joined: Oct 2014
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From: florida
Default Car will not start

Car will not start. Starter stuck in & then car stalled. Replaced starter & then the car will not run Starter works fine but engine will not fire. The fuel pump will not run when you turn key on. Checked relay & put a jumper & pump will run. I bought a code reader but it will not read any codes. Took out ecm & inspected board & did not see any internal damage.
Old Oct 28, 2014 | 07:23 AM
  #2  
88 orangepeel notch's Avatar
88 orangepeel notch
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Joined: Mar 2010
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From: Wisconsin
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First, verify what your missing. Fuel or spark ?

Also, did you drink a pot of coffee before that post? kinda chaotic lol.

And welcome to the forum, but take that code reader back and put that money back in your pocket.

Last edited by 88 orangepeel notch; Oct 28, 2014 at 07:58 AM.
Old Oct 28, 2014 | 08:12 AM
  #3  
88 orangepeel notch's Avatar
88 orangepeel notch
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From: Wisconsin
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Here is some reading for you that helped me out a couple times.

http://sbftech.com/index.php/topic,588.0.html
Old Oct 28, 2014 | 05:55 PM
  #4  
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glunger
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From: florida
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As I said the fuel pump will not turn on when I turn the key to the on pos. I tried to explain the checks that I made so I could some reasonable advice. As far as spark I understand unless the pump runs & builds pressure the ecm will turn on spark function.
Old Nov 1, 2014 | 10:59 AM
  #5  
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glunger
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Originally Posted by glunger
As I said the fuel pump will not turn on when I turn the key to the on pos. I tried to explain the checks that I made so I could some reasonable advice. As far as spark I understand unless the pump runs & builds pressure the ecm will turn on spark function.
Problem solved replaced computer.
Old Nov 1, 2014 | 12:30 PM
  #6  
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mjr46
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Joined: Jun 2007
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From: West Virginia
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Originally Posted by glunger
Problem solved replaced computer.
thread closed.......next time do a better job of explaining all tests performed, because all the tests you did are half azzed at best and in the middle of the circuit testing.......jumpering the pump relay only verifies a few things since the ecm triggers the relay for 2 sec in koeo mode and then off when no pip is seen, you could of quickly verified ecm issue by hooking test light to power source on 1 end and backprobe that pin at relay and see if ecm was grounding the coil side to relay........catch my drift?? this was just one area I can poke holes in your flawed troubleshooting in the middle.......verify all ends next time and you won't get responses like such.
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