cranks but will not start?

2005 CHEVROLET SILVERADO
130,000 MILES • 4.3L • V6 • 2WD • AUTOMATIC
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ANUNN
  • MEMBER
  • 3 POSTS
I replaced the fuel pump due to it not working, now I still have a crank but no start. Replaced the ignition coil and ignition control module. Using my Snap-On Scanner i see an engine speed signal when cranking but still no start.
Oct 11, 2022 at 6:13 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
Hi,

Do me a favor. See if it starts for a couple of seconds using starting fluid. If it does, we know it's still a fuel-related issue. If there is no change, confirm there is spark at the plugs.

Here is a link that explains how:

https://www.2carpros.com/articles/how-to-check-for-ignition-spark

Let me know what you find.

Take care,

Joe
Oct 11, 2022 at 1:15 PM
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ANUNN
  • MEMBER
  • 3 POSTS
So, I have fuel and I have power to the ignition module with the key on, but I do not have power to the ignition coil with the key on. What else should I look for? I have checked all fuses, but all are good.
Oct 12, 2022 at 1:31 AM
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ANUNN
  • MEMBER
  • 3 POSTS
Fixed It! Power wire for the coil was not making a good connection.
Oct 12, 2022 at 2:17 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
Hi,

Thanks for the update. I'm glad to hear you found the problem and it's running again.

Please feel free to come back anytime in the future if you have questions. You are always welcome here.

Take care,

Joe
Oct 12, 2022 at 10:57 AM
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