Lightning won't start - Ford Mustang Forums : Mustang Forum
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post #1 of 3 Old 08-11-2015, 09:55 PM Thread Starter
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Lightning won't start

I cannot figure this out... It has 40 psi of fuel pressure and it has spark. Timing is fine. Sometimes it hiccups and runs for just a split second but doesn't stay running. It all started after a long trip. I parked it, went outside and it didn't start... Tried in the afternoon and it ran just enough for me to move it in the driveway and it started to run like it was on 4 cyl amd then died. It hasn't run since. Any help or diagnostic steps would be amazing as I am out in the cornfields and the dealer doesn't want to work on anything this old..

I did also put a noid on the injector harness and it is flashing. Any ideas??? Any help is much appreciated. Could it be computer or clogged injectors?

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post #2 of 3 Old 08-15-2015, 01:03 PM
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Have you checked the coils?The one on the rear passenger side has a water hose that runs directly over the top of of this coil.The hose can be a leaking and kill that coil.It will buck and sputter badly if this or ANY coil is bad.You can check your coils just like you would a spark plug.While engine is running unplug coil wire.If tone of engine do'nt change then you have found your bad coil.R N R that coil.This is what happened to me on my 2003 Harley.This is also how I fixed mine as well.Also..we tried a diagnostic tool on my truck and it could not find this condition.I also buy the FORD brand of coils.They seem to work better than others.Hope this helps?

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post #3 of 3 Old 08-15-2015, 01:23 PM
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I am assuming you have a 5.4 Super charged Lightning?
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