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Electrical issues on 06 saturn ion

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26 Nov 2019 05:39 #35329 by Jr
Dan need your help bad.
Having electrical issues on our saturn.
Started out as a random miss on 2 and 3 cyl. Only ever happened at start up. One time it starts and runs smooth. Then another time it would have a 2-3 miss fire.
Shut it off restart it and its ok.
Funny thing is. No stored codes from it.?
Swapped coils,ign modules with same issues.
Cleaned grounds, added grounds from engine to chassis.
Same issues.
There was an issue found by our trade school teacher. Bad wire in engine harness. He cut that bad wire out and jumped it.
Seemed to help for a short time but the issue is back.
Same 2-3 missfire.
Help... computer issue.??

Thanks jamie

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26 Nov 2019 05:47 #35330 by Cheryl
Replied by Cheryl on topic Electrical issues on 06 saturn ion
Sounds kinda like a head gasket issue. To miss when first started then clears up. Or leaking fuel injectors. I’d pull plugs out put pressure tester on cooling system pump it up 20 psi and let sit. Then come back and crank it see if any antifreeze come out of plug holes.

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26 Nov 2019 07:06 #35333 by Noah
Replied by Noah on topic Electrical issues on 06 saturn ion
Cold start miss on 2 cylinders next to each other..

+1 for suspected head gasket

"Learn, apply, repeat."

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26 Nov 2019 07:58 - 26 Nov 2019 08:11 #35334 by Monde
Replied by Monde on topic Electrical issues on 06 saturn ion
It could be an intake manifold gasket leak. Spray around the cylinders affected with soapy water before the car gets warm and see if you can find the leak.

Vouloir, c'est pouvoir.
Last edit: 26 Nov 2019 08:11 by Monde. Reason: Remove Fuel trim part because you don't get fuel trim on start up.
The following user(s) said Thank You: Noah

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26 Nov 2019 12:12 #35345 by Jr
Replied by Jr on topic Electrical issues on 06 saturn ion
It will continue to miss until you shut it off and restart. It's an electrical issue not mechanical.
Thanks.

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28 Nov 2019 11:28 #35408 by Noah
Replied by Noah on topic Electrical issues on 06 saturn ion
Which engine is your Saturn?

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28 Nov 2019 13:59 #35410 by Jr
Replied by Jr on topic Electrical issues on 06 saturn ion
2.2

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