Will not start

Tiny
PITBOSS21
  • MEMBER
  • 1999 FORD MUSTANG
  • 3.8L
  • V6
  • 2WD
  • MANUAL
  • 1,850,000 MILES
I lost power in the engine. I replaced the Ignition Coil pack because I had 3 misfires. Now engine will crank over but will not start. Fuel pump comes on battery is good.
Monday, September 14th, 2020 AT 7:23 AM

5 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,164 POSTS
Hi,

Chances are there is an issue with the crankshaft position sensor. Have you checked to see if there is spark to the plugs?

Here is a link that explains how to check. Do this and let me know what you find.

https://www.2carpros.com/articles/how-to-test-an-ignition-system

Take care,
Joe
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Monday, September 14th, 2020 AT 5:27 PM
Tiny
PITBOSS21
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  • 3 POSTS
Yes, I get spark and would there be dtc for the crank?
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Monday, September 14th, 2020 AT 5:38 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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If you have both fuel and spark, it should run unless there is a timing issue or low compression.

Do me a favor. See if it starts for a couple seconds and then stalls if you use starting fluid. If it does, we need to check the fuel injectors for an injection pulse and confirm that fuel pressure is within the manufacturer's specs.

Let me know.
Joe
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Monday, September 14th, 2020 AT 6:57 PM
Tiny
PITBOSS21
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This is what it is doing.
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Tuesday, September 15th, 2020 AT 6:05 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,164 POSTS
I listened to it. Is the battery fully charged? If it is, it sounds like the timing is off. Note how it cranks and hesitates and then cranks again. Usually, that is caused by an ignition spark that is too early.

Are you certain that the spark plug wires were reinstalled to the correct cylinders? See pic 1. I have a feeling that is what is causing the problem.

Let me know.
Joe
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Tuesday, September 15th, 2020 AT 6:57 PM

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