Started with cold packs no crank no start

1997 CHEVROLET MONTE CARLO
2,102,855 MILES • 3.1L • 6 CYL • AUTOMATIC
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ANGIE5150
  • MEMBER
  • 1 POST
I my coil packs my camshafts my crankshaft my spark plugs wires still it's cranking over with no start, but when I changed over the wires after changing rest it did backfire.
Mar 15, 2022 at 10:34 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,244 POSTS
Hi,

First, are you certain the spark plugs wires on going to the correct cylinders? I attached two pics below. Check to make sure you have the correct firing order and cylinders selected.

Next, have you checked for spark to the plugs? There could be an issue with the ignition control module. Here is a link showing how to check:

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

The idea that it did backfire indicates either a build-up of fuel, intermittent spark to the plugs, or timing issue.

Let me know about the things I mentioned.

Joe
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Mar 16, 2022 at 9:26 AM
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