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Old 02-10-2011, 11:20 PM   #1
robtthorn
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ignition coil problems

can any one tell me what would cause the ignition coil to burn up and foul the plugs in # 2& 3 cylinders after driving 10 to 12 miles in a 1997 toyota tercel
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Old 02-20-2011, 04:05 AM   #2
killdaggy
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Re: ignition coil problems

Thats not a big problem. You can fix that by inspecting if its not grounded. Maybe just replace it.
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Old 02-22-2011, 09:10 PM   #3
jdmccright
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Re: ignition coil problems

Toyota coils can fail without technically failing. They can pass the usual resistance tests yet still fail. Why? They can produce a spark, but isn't hot enough to fully ignite the air/fuel mixture. Your plugs are likely fouled due to the incomplete burn caused by a weak coil. Despite this, I'd highly suggest replacing with another Toyota coil because the aftermarket ones don't last very long and they typically do not come with a warranty.

Hope this helps!
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