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Old 01-28-2010, 09:58 AM   #1
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Hi guys, I need your advice. My 2000 Bonneville started running bad, missing real bad. Last night I started it and popped the hood and I could see a big blue arc from the wire boot to the bolt holding down the 3/6 coil pack. Do you think that means a faulty coil pack or something else? Jim
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Old 01-28-2010, 10:20 AM   #2
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Either means bad plug wire boot or a cracked coil.
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Old 01-28-2010, 10:27 AM   #3
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Pull the wire off and inspect the coil. Do you see anything that looks like a scratch? If so, that'* a carbon trace. Replace the coil. If not, pick up a new set of plug wires and change them all out, but change them one at a time so you get everything back the right way.
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Old 01-28-2010, 10:38 AM   #4
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Thanks guys, I pulled the boot last night and it was full of alot of black dust, I cleaned that all up and the boot looked to be in good shape but still arced to the bolt head badly. I will take your advice and replace the coil and wires. Jim
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Old 01-28-2010, 10:39 AM   #5
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Carbon traces are hard to see. If you can see the arch, then best to replace.
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Old 01-28-2010, 10:43 AM   #6
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Did you say the arch comes through the boot? If so..it'* the wires. If there'* a crack on the coil, it'* the coil.
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Old 01-28-2010, 10:48 AM   #7
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Yes the arc appears to be coming from under the boot straight to the mounting bolt head.
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Old 02-01-2010, 02:23 PM   #8
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replace your plug wires, I've had to do this twice for same reason as you describe.
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