V6 (1994-2004) Mustangs Technical discussions on the 3.8L and 3.9L V6 torque monsters

Car won't start, service engine light is not on

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Old Nov 7, 2017 | 11:54 AM
  #11  
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Urambo Tauro
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Maybe. You did mention that starting fluid seemed to help, so there could still be a problem with fuel delivery.

So you've got pressure up to the fuel rail... are the injectors spraying?

Last edited by Urambo Tauro; Nov 7, 2017 at 11:57 AM.
Old Nov 7, 2017 | 01:36 PM
  #12  
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Originally Posted by Urambo Tauro
Maybe. You did mention that starting fluid seemed to help, so there could still be a problem with fuel delivery.

So you've got pressure up to the fuel rail... are the injectors spraying?
How can I check?
Old Nov 7, 2017 | 02:20 PM
  #13  
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You can look for power being sent to the injectors while cranking, and/or disable the ignition and see if the spark plugs are wet after cranking.
Old Nov 7, 2017 | 04:34 PM
  #14  
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Originally Posted by Urambo Tauro
You can look for power being sent to the injectors while cranking, and/or disable the ignition and see if the spark plugs are wet after cranking.
How do I disable ignition? I'm working by myself and can't crank and watch meter at same time.
Old Nov 8, 2017 | 10:24 AM
  #15  
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Any way you want, really. CKP sensor, ICM, coil, plug wires... all you have to do is keep the plugs from sparking, so they won't burn off any fuel that gets sprayed.
Old Nov 8, 2017 | 11:15 AM
  #16  
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Originally Posted by Urambo Tauro
Any way you want, really. CKP sensor, ICM, coil, plug wires... all you have to do is keep the plugs from sparking, so they won't burn off any fuel that gets sprayed.
Disconnecting the coil plug, won't effect the injectors spaying?
Old Nov 8, 2017 | 11:33 AM
  #17  
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Hm, I think it's the CMP sensor that controls fuel delivery.




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