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Electrical issues on 06 saturn ion

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4 years 4 months ago #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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4 years 4 months ago #35330 by Cheryl
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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4 years 4 months ago #35333 by Noah
Cold start miss on 2 cylinders next to each other..

+1 for suspected head gasket

"Ground cannot be checked with a 10mm socket"

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4 years 4 months ago #35345 by Jr
It will continue to miss until you shut it off and restart. It's an electrical issue not mechanical.
Thanks.

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4 years 4 months ago #35408 by Noah
Which engine is your Saturn?

"Ground cannot be checked with a 10mm socket"

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4 years 4 months ago #35410 by Jr
2.2

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