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Crank no start?

Tiny
SARAHLAIRD222
  • MEMBER
  • 2004 FORD MUSTANG
  • 3.9L
  • V6
  • 2WD
  • AUTOMATIC
  • 2,110,625 MILES
I replaced the wires only, motor started shaking, backfire, then died and now crank but no start. I replaced the fuel filter and I think I have the fire order right. There's also a little pop sound front driver side when I try to start. Sometimes when it's cold, it will start for like 3 seconds then shut off again. Battery good and have been keeping it charged with a charger.
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Monday, November 6th, 2023 AT 5:45 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,779 POSTS
Hi,

If it wasn't doing this before replacing the spark plug wires, chances are you have them going to the wrong cylinders.

I attached a pic below showing the wire orientation. Check this to make sure you have them correct. It's easy to make a mistake. The pop sound you hear is likely a cylinder firing at the wrong time.

Also, if you could record what it is doing and upload it for me to hear, it would help.

Let me know.

Joe

See pic below.
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Monday, November 6th, 2023 AT 6:47 PM

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