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help! no spark, cranks but wont start.

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Old 08-22-2014, 12:45 PM
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help! no spark, cranks but wont start.

I have a 2006 cobalt ss sc, car stalled at a stop sign and never restarted. Here is what I checked: fuel pressure good, NO spark, fuses, no code shows up, rmp moves so I was told its not the crank sensor. Does anyone have an idea? Thank you
Old 08-22-2014, 01:26 PM
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I'd think the no spark would be ur issue. Check plugs, coils, ect ect
Old 08-22-2014, 01:50 PM
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No spark on all 4 cylinders?
Old 08-22-2014, 03:53 PM
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Originally Posted by Terminator2
No spark on all 4 cylinders?
Yes no spark on all 4
Old 08-22-2014, 04:24 PM
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Originally Posted by raymondman22
Yes no spark on all 4
Hard to believe 4 bad coils or plugs. I say either the main wiring harness to the coils or the Plugs at the ECM need to be checked. Water can get into the plugs and rot the pins.
Old 08-22-2014, 05:03 PM
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you stated you checked the fuse? ignition fuse?
Old 08-22-2014, 05:21 PM
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Sounds like your crank sensor took a crap to me.
Old 08-22-2014, 05:41 PM
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Originally Posted by Sunburst_SS
Sounds like your crank sensor took a crap to me.
Rmp moves when cranking
Old 08-22-2014, 05:42 PM
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Originally Posted by Terminator2
Hard to believe 4 bad coils or plugs. I say either the main wiring harness to the coils or the Plugs at the ECM need to be checked. Water can get into the plugs and rot the pins.
Ill check that, it was a really rainy day when it quit.
Old 08-26-2014, 06:29 PM
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All connections are nice and dry, and still no spark
Old 08-26-2014, 10:45 PM
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bad crank sensor will kill spark and fluel,
Old 08-27-2014, 10:41 AM
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Originally Posted by kzak104
bad crank sensor will kill spark and fluel,
I have fuel and rmp gauge moves
Old 05-26-2016, 09:43 AM
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I'm having same problem just put new motor in my ls and cranks but no spark to any coil packs
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